Fix queue loading, null-safe models, autofill, and add outbound dialer

- Fix queue queries in mobile API and SSE to use twp_group_members
  (matching browser phone) instead of twp_queue_assignments
- Auto-create personal queues if user has no extension
- Make all model JSON parsing null-safe (handle null, string ints, bools)
- Add AutofillGroup and autofill hints to login form
- Add outbound calling with dialpad bottom sheet on dashboard

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.claude/settings.local.json

@@ -0,0 +1,13 @@
+{
+  "permissions": {
+    "allow": [
+      "Bash(scp:*)",
+      "Bash(grep:*)",
+      "Bash(git add:*)",
+      "Bash(git commit:*)",
+      "Bash(git push)"
+    ],
+    "deny": [],
+    "defaultMode": "acceptEdits"
+  }
+}

.gitea/workflows/release.yml

@@ -0,0 +1,82 @@
+name: Create Release
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          username: ${{ secrets.CI_USER }}
+          password: ${{ secrets.CI_TOKEN }}
+          fetch-depth: 0  # Important: Fetch all history for commit messages
+
+      - name: Get version
+        id: get_version
+        run: |
+          if [ "${{ github.ref_type }}" = "tag" ]; then
+            echo "version=${GITHUB_REF#refs/tags/}" >> $GITHUB_OUTPUT
+          else
+            echo "version=$(date +'%Y.%m.%d-%H%M')" >> $GITHUB_OUTPUT
+          fi
+
+      - name: Generate release notes
+        id: release_notes
+        run: |
+          # Find the most recent tag
+          LATEST_TAG=$(git describe --tags --abbrev=0 --always 2>/dev/null || echo "none")
+
+          if [ "$LATEST_TAG" = "none" ]; then
+            # If no previous tag exists, get all commits
+            COMMITS=$(git log --pretty=format:"* %s (%h)" --no-merges)
+          else
+            # Get commits since the last tag
+            COMMITS=$(git log --pretty=format:"* %s (%h)" ${LATEST_TAG}..HEAD --no-merges)
+          fi
+
+          # Create release notes with header (without encoding newlines)
+          echo "notes<<EOF" >> $GITHUB_OUTPUT
+          echo "## What's New in ${{ steps.get_version.outputs.version }}" >> $GITHUB_OUTPUT
+          echo "" >> $GITHUB_OUTPUT
+          echo "$COMMITS" >> $GITHUB_OUTPUT
+          echo "EOF" >> $GITHUB_OUTPUT
+
+      - name: Update plugin version
+        run: |
+          # Replace version placeholder with actual version
+          sed -i "s/Version: {auto_update_value_on_deploy}/Version: ${{ steps.get_version.outputs.version }}/" twilio-wp-plugin.php
+          sed -i "s/TWP_VERSION', '{auto_update_value_on_deploy}/TWP_VERSION', '${{ steps.get_version.outputs.version }}/" twilio-wp-plugin.php
+
+          # Verify the changes were made
+          grep "Version:" twilio-wp-plugin.php
+          grep "TWP_VERSION" twilio-wp-plugin.php
+
+      - name: Create ZIP archive
+        run: |
+          # Create a temp directory with the correct plugin folder name
+          mkdir -p /tmp/twilio-wp-plugin
+
+          # Copy files to the temp directory (excluding git and other unnecessary files)
+          cp -r * /tmp/twilio-wp-plugin/ 2>/dev/null || true
+
+          # Exclude .git and .gitea directories
+          rm -rf /tmp/twilio-wp-plugin/.git /tmp/twilio-wp-plugin/.gitea 2>/dev/null || true
+
+          # Create the ZIP file with the proper structure
+          cd /tmp
+          zip -r $GITHUB_WORKSPACE/twilio-wp-plugin.zip twilio-wp-plugin
+
+      - name: Create Release
+        uses: softprops/action-gh-release@v2
+        with:
+          token: "${{ secrets.REPO_TOKEN }}"
+          title: "Twilio WP Plugin Release ${{ steps.get_version.outputs.version }}"
+          tag_name: ${{ steps.get_version.outputs.version }}
+          body: "${{ steps.release_notes.outputs.notes }}"
+          files: |
+            twilio-wp-plugin.zip

.gitea/workflows/update-version.yml

@@ -0,0 +1,53 @@
+name: Update Plugin Version
+
+on:
+  release:
+    types: [created, edited]
+
+jobs:
+  update-version:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Get release tag
+        id: get_tag
+        run: echo "TAG=${GITEA_REF#refs/tags/}" >> $GITEA_ENV
+
+      - name: Update version in plugin file
+        run: |
+          # Replace version in main plugin file (both header and constant)
+          sed -i "s/Version: {auto_update_value_on_deploy}/Version: ${{ env.TAG }}/" twilio-wp-plugin.php
+          sed -i "s/TWP_VERSION', '{auto_update_value_on_deploy}/TWP_VERSION', '${{ env.TAG }}/" twilio-wp-plugin.php
+
+          # Verify changes
+          grep "Version:" twilio-wp-plugin.php
+          grep "TWP_VERSION" twilio-wp-plugin.php
+
+      - name: Commit changes
+        run: |
+          git config --local user.email "action@gitea.com"
+          git config --local user.name "Gitea Action"
+          git add twilio-wp-plugin.php
+          git commit -m "Update version to ${{ env.TAG }}" || echo "No changes to commit"
+          git push || echo "Nothing to push"
+
+      - name: Create plugin zip
+        run: |
+          mkdir -p /tmp/twilio-wp-plugin
+          rsync -av --exclude=".git" --exclude=".gitea" --exclude="build" . /tmp/twilio-wp-plugin/
+          cd /tmp
+          zip -r $GITEA_WORK_DIR/twilio-wp-plugin.zip twilio-wp-plugin
+
+      - name: Upload zip to release
+        uses: actions/upload-release-asset@v1
+        env:
+          GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
+        with:
+          upload_url: ${{ gitea.event.release.upload_url }}
+          asset_path: twilio-wp-plugin.zip
+          asset_name: twilio-wp-plugin.zip
+          asset_content_type: application/zip

CLAUDE.md

@@ -6,6 +6,25 @@
 - **URL**: `https://phone.cloud-hosting.io/`
 - **Deployment**: rsync to Docker (remote server only, not local)
 - **SDK**: Twilio PHP SDK v8.7.0
+- **PHP**: 8.0+ required
+- **Optional**: AWS SDK (`aws/aws-sdk-php`) for SNS SMS provider
+- **External SDK**: `wp-content/twilio-sdk/` (survives plugin updates)
+
+## Commands
+- **Install SDK (recommended)**: `./install-twilio-sdk-external.sh` (installs to `wp-content/twilio-sdk/`)
+- **Install SDK (internal)**: `./install-twilio-sdk.sh` (installs to `vendor/`, lost on plugin update)
+- **Test SDK**: `php test-sdk.php`
+- **Composer install SDK**: `composer install-sdk`
+- **Deploy**: rsync to Docker (remote server, see production path above)
+- **CI/CD**: Gitea workflows in `.gitea/workflows/` — `release.yml`, `update-version.yml`
+
+## Directory Structure
+- `twilio-wp-plugin.php` — Main plugin file, constants, SDK loading
+- `includes/` — All backend classes (28 class files)
+- `admin/` — Admin UI class (`TWP_Admin`), mobile app settings page
+- `assets/js/` — Browser phone JS, service worker
+- `assets/images/`, `assets/sounds/` — Static assets
+- `.gitea/workflows/` — CI/CD (release, version update)
 
 ## Phone Variable Names
 **Use**: `incoming_number`, `agent_number`, `customer_number`, `workflow_number`, `queue_number`, `default_number`  
@@ -17,11 +36,20 @@
 - **TWP_Admin**: Has `find_customer_call_leg()` - CRITICAL for call control
 - **TWP_TTS_Helper**: ElevenLabs/Alice fallback, 30-day cache
 - **TWP_User_Queue_Manager**: Auto-creates queues/extensions (100-9999)
-- **TWP_Webhooks**: 26 endpoints at `twilio-webhook/v1`
-- **TWP_Activator**: Creates 15 DB tables, run `ensure_tables_exist()` if missing
+- **TWP_Webhooks**: 35 endpoints at `twilio-webhook/v1`
+- **TWP_Activator**: Creates 16 DB tables, run `ensure_tables_exist()` if missing
+- **TWP_Core**: Main plugin orchestrator, hooks all classes together
+- **TWP_SMS_Manager**: SMS abstraction with provider interface
+- **TWP_SMS_Provider_Twilio** / **TWP_SMS_Provider_SNS**: SMS providers (Twilio default, AWS SNS optional)
+- **TWP_Mobile_API**: REST API for mobile app
+- **TWP_Mobile_Auth** / **TWP_Mobile_SSE** / **TWP_FCM**: Mobile auth, server-sent events, push notifications
+- **TWP_Call_Queue**: Queue operations and management
+- **TWP_Callback_Manager**: Callback request handling
+- **TWP_Workflow**: Workflow step execution engine
+- **TWP_Auto_Updater**: Plugin auto-update from Gitea releases
 
 ## Database
-15 tables with `twp_` prefix. Key notes:
+16 tables with `twp_` prefix. Key notes:
 - `twp_call_queues`: User queues (general/personal/hold)
 - `twp_agent_status`: Has `auto_busy_at` for 1-min auto-revert
 - `twp_queued_calls`: Uses `enqueued_at` not `joined_at`
@@ -40,13 +68,6 @@ $api->update_call($customer_call_sid, ['twiml' => $twiml_xml]);
 - Queue: Pass `waitUrl` as option in `enqueue()`
 - TwiML: Use SDK classes, not raw XML
 
-## Recent Changes (v2.3.0)
-- Browser phone moved to admin-only
-- Call control uses `find_customer_call_leg()` to prevent disconnections
-- Auto-creates user queues/extensions when needed
-- Firefox support added
-- 1-min agent status auto-revert
-
 ## Development Notes
 - **API**: E.164 format (+1XXXXXXXXXX)
 - **Database**: Use `$wpdb`, prepared statements
@@ -59,7 +80,24 @@ $api->update_call($customer_call_sid, ['twiml' => $twiml_xml]);
 - User-specific queues with extensions
 - Browser phone at `admin.php?page=twilio-wp-browser-phone`
 - ElevenLabs TTS with Alice fallback
-- 68 AJAX actions, 26 REST endpoints
+- 77 AJAX actions, 35 REST endpoints
+- Browser phone moved to admin-only (v2.3.0)
+- Firefox, Chrome, Safari, Edge support
+- 1-min agent status auto-revert
+
+## SDK Loading
+- **External SDK (Recommended)**: `wp-content/twilio-sdk/` — survives plugin updates
+- **Internal SDK**: `vendor/` — deleted on plugin update, needs reinstall
+- Loading priority: External first (`TWP_EXTERNAL_SDK_DIR`), then internal fallback
+- Post-update hook (`upgrader_process_complete`) warns if SDK missing
+
+## Browser Phone Configuration
+- **Edge Location**: `twp_twilio_edge` option, default `roaming`
+- Options: roaming, ashburn, umatilla, dublin, frankfurt, singapore, sydney, tokyo, sao-paulo
+- Wrong edge causes immediate call failures (e.g., US calls with Sydney edge)
+
+## Changelog
+See `README.md` for detailed version history. Current version: v2.8.9.
 
 ---
-*Updated: Sept 2025*
+*Updated: Mar 2026*

DEBUGGING-TABLET.md

@@ -0,0 +1,427 @@
+# Debugging Browser Phone on Android Tablet
+
+This guide explains how to debug the Twilio WordPress Plugin browser phone on Android tablets (Samsung and other devices).
+
+## Prerequisites
+
+- Android tablet with Chrome browser
+- USB cable to connect tablet to computer
+- Computer with Chrome browser installed
+- USB debugging enabled on tablet
+
+---
+
+## Part 1: Enable USB Debugging on Android Tablet
+
+### Step 1: Enable Developer Options
+
+1. Open **Settings** on your Android tablet
+2. Scroll down to **About tablet** (or **About device**)
+3. Find **Build number** (may be under "Software information")
+4. Tap **Build number** 7 times rapidly
+5. You'll see a message: "You are now a developer!"
+
+### Step 2: Enable USB Debugging
+
+1. Go back to **Settings**
+2. Scroll down to **Developer options** (newly appeared)
+3. Toggle **Developer options** to ON
+4. Find **USB debugging** in the list
+5. Toggle **USB debugging** to ON
+6. Confirm the prompt if asked
+
+### Step 3: Trust Your Computer
+
+1. Connect tablet to computer via USB cable
+2. Unlock your tablet screen
+3. A popup will appear: "Allow USB debugging?"
+4. Check **Always allow from this computer**
+5. Tap **OK** or **Allow**
+
+---
+
+## Part 2: Connect Chrome DevTools
+
+### On Your Computer
+
+1. Open **Chrome browser** on your computer
+2. Navigate to: `chrome://inspect`
+3. You should see your tablet device listed under "Remote Target"
+4. Wait a few seconds for the device to appear
+
+### Inspect the Browser Phone Page
+
+1. On your tablet, open Chrome and navigate to:
+   ```
+   https://phone.cloud-hosting.io/wp-admin/admin.php?page=twilio-wp-browser-phone
+   ```
+2. On your computer's Chrome DevTools (`chrome://inspect`), you'll see the page listed
+3. Click **inspect** next to the browser phone page
+4. A DevTools window will open showing your tablet's browser
+
+---
+
+## Part 3: Debug Browser Phone Issues
+
+### Check Console Logs
+
+In the **Console** tab, look for key messages:
+
+#### Successful Connection
+```
+Twilio SDK loaded successfully
+Setting up Twilio Device...
+Device detection - Android: true, Mobile: true
+AudioContext created, state: running
+Device registered successfully
+Device connection state: connected
+```
+
+#### Connection Issues
+```
+Device not connected, state: disconnected
+Failed to register device
+Connection error: 31005
+```
+
+#### Call Issues
+```
+Answer button clicked
+Device connection state: connected
+Accepting call...
+Call accepted and connected
+```
+
+### Monitor Network Requests
+
+1. Switch to **Network** tab in DevTools
+2. Filter by: `twp_` or `twilio`
+3. Check for failed requests (red status codes)
+4. Look for:
+   - `twp_generate_capability_token` - Should return 200
+   - `twp_get_phone_numbers` - Should return 200
+   - WebSocket connections to Twilio
+
+### Check Device Registration
+
+In the **Console** tab, type:
+```javascript
+device
+```
+This shows the current Twilio Device object. Check:
+- `device.state` - Should be "registered"
+- `device.token` - Should exist (long string)
+
+### Check AudioContext State
+
+In the **Console** tab, type:
+```javascript
+audioContext
+```
+Check:
+- Should exist (not null)
+- `audioContext.state` - Should be "running" (not "suspended")
+
+---
+
+## Part 4: Common Issues & Solutions
+
+### Issue 1: "Device not connected" Error
+
+**Symptoms**: Status shows "Disconnected", calls hang up immediately
+
+**Debugging**:
+```javascript
+// In console, check:
+deviceConnectionState
+// Should be: "connected"
+```
+
+**Solutions**:
+1. Check network connection (try WiFi vs cellular)
+2. Refresh the page with cache cleared
+3. Check console for token errors
+4. Verify Twilio credentials in plugin settings
+
+### Issue 2: Call Hangs Up Immediately When Answered
+
+**Symptoms**: Click "Answer" button, call disconnects instantly
+
+**Debugging**:
+```javascript
+// Check device state before answering:
+deviceConnectionState
+// Check for errors in call handler
+```
+
+**Look for console errors**:
+- `31005` - Connection/network error
+- `31201` - ICE connection failure
+- `31208` - Media connection error
+
+**Solutions**:
+1. Grant microphone permissions (Settings > Site settings > Microphone)
+2. Check AudioContext is running: `audioContext.state`
+3. Try switching between WiFi and cellular data
+4. Clear Chrome cache and reload
+
+### Issue 3: No Sound/Ringtone on Incoming Call
+
+**Symptoms**: Call arrives but no audio plays, no vibration
+
+**Debugging**:
+```javascript
+// Check audio setup:
+ringtoneAudio
+audioContext.state
+```
+
+**Solutions**:
+1. Tap screen to unlock AudioContext (mobile restriction)
+2. Check if ringtone file exists (optional, vibration is fallback)
+3. Verify device supports Vibration API: `'vibrate' in navigator`
+4. Check browser volume settings
+
+### Issue 4: No Browser Notifications
+
+**Symptoms**: No notification when call arrives in background
+
+**Debugging**:
+```javascript
+// Check notification permission:
+Notification.permission
+// Should be: "granted"
+
+// Check service worker:
+navigator.serviceWorker.controller
+// Should exist
+```
+
+**Solutions**:
+1. Grant notification permission: Settings > Site settings > Notifications
+2. Check service worker registration in **Application** tab of DevTools
+3. Look for service worker logs in console
+4. Reinstall PWA if installed
+
+### Issue 5: Microphone Permission Denied
+
+**Symptoms**: Error message about microphone access
+
+**Solutions**:
+1. Chrome Settings > Site settings > Microphone
+2. Find `phone.cloud-hosting.io`
+3. Change permission to **Allow**
+4. Refresh the browser phone page
+
+---
+
+## Part 5: Tablet-Specific Checks
+
+### Check User Agent
+
+In console:
+```javascript
+navigator.userAgent
+```
+Should include "Android" and "Chrome"
+
+### Check WebRTC Support
+
+```javascript
+// Check getUserMedia support:
+navigator.mediaDevices.getUserMedia
+// Should be: function
+
+// Check Notification support:
+'Notification' in window
+// Should be: true
+
+// Check Service Worker support:
+'serviceWorker' in navigator
+// Should be: true
+```
+
+### Check Audio Constraints
+
+Look in console for:
+```
+Twilio Device created with audio constraints: {
+  echoCancellation: true,
+  noiseSuppression: true,
+  autoGainControl: true,
+  googEchoCancellation: true,
+  ...
+}
+```
+
+### Test Vibration
+
+In console:
+```javascript
+navigator.vibrate([300, 200, 300])
+```
+Tablet should vibrate if supported.
+
+---
+
+## Part 6: Advanced Debugging
+
+### Monitor Twilio Device Events
+
+In console, add event listeners:
+```javascript
+device.on('registered', () => console.log('Device registered!'));
+device.on('error', (error) => console.error('Device error:', error));
+device.on('incoming', (call) => console.log('Incoming call:', call));
+device.on('unregistered', () => console.log('Device unregistered'));
+```
+
+### Check Call State During Active Call
+
+```javascript
+// When in a call:
+currentCall
+currentCall.status()
+currentCall.parameters
+```
+
+### Test Audio Context Resume
+
+```javascript
+// Try to resume manually:
+audioContext.resume().then(() => {
+  console.log('AudioContext state:', audioContext.state);
+});
+```
+
+### Check Token Expiry
+
+```javascript
+// See when token expires:
+new Date(tokenExpiry)
+```
+
+---
+
+## Part 7: Logging Important Information
+
+### Collect Debugging Info
+
+Run this in console to get a debug report:
+```javascript
+console.log('=== Browser Phone Debug Report ===');
+console.log('User Agent:', navigator.userAgent);
+console.log('Device State:', deviceConnectionState);
+console.log('Device Registered:', device ? device.state : 'no device');
+console.log('AudioContext:', audioContext ? audioContext.state : 'no context');
+console.log('Notification Permission:', Notification.permission);
+console.log('Service Worker:', navigator.serviceWorker.controller ? 'active' : 'inactive');
+console.log('Current Call:', currentCall ? 'in call' : 'no call');
+console.log('Token Expiry:', tokenExpiry ? new Date(tokenExpiry) : 'unknown');
+```
+
+### Check WordPress AJAX Responses
+
+In **Network** tab:
+1. Filter: `admin-ajax.php`
+2. Click on request
+3. Check **Preview** tab for response
+4. Look for `success: true` or error messages
+
+---
+
+## Part 8: Testing Checklist
+
+After fixing issues, test these scenarios:
+
+- [ ] Device shows "Connected" status
+- [ ] Can make outbound call successfully
+- [ ] Can receive incoming call (see notification)
+- [ ] Can answer incoming call without hang-up
+- [ ] Ringtone plays or tablet vibrates
+- [ ] Call audio is clear (echo cancellation working)
+- [ ] Can switch between WiFi and cellular during call
+- [ ] Browser notification appears when app in background
+- [ ] Service worker logs appear in console
+- [ ] No errors in console during call lifecycle
+- [ ] Can put call on hold
+- [ ] Can transfer call
+- [ ] Call timer updates correctly
+
+---
+
+## Troubleshooting Specific Error Codes
+
+### Twilio Error 31005
+**Meaning**: WebSocket connection failed
+
+**Causes**:
+- Network connectivity issues
+- Firewall blocking WebSocket
+- Mobile network switching (WiFi ↔ cellular)
+
+**Solutions**:
+- Check internet connection
+- Try different network
+- Wait for ICE restart (enabled in config)
+
+### Twilio Error 31201
+**Meaning**: ICE connection failed
+
+**Causes**:
+- Restrictive NAT/firewall
+- Mobile network issues
+
+**Solutions**:
+- Try different network
+- Check WebRTC connectivity
+- Enable mobile data if on WiFi only
+
+### Twilio Error 31204
+**Meaning**: Connection error
+
+**Causes**:
+- Media connection setup failed
+- Signaling timeout
+
+**Solutions**:
+- Refresh page
+- Check microphone permissions
+- Verify audio constraints applied
+
+### Twilio Error 31208
+**Meaning**: Media connection failed
+
+**Causes**:
+- Microphone access denied
+- Audio device issues
+
+**Solutions**:
+- Grant microphone permission
+- Check device audio settings
+- Restart browser
+
+---
+
+## Additional Resources
+
+- Twilio Voice SDK Errors: https://www.twilio.com/docs/voice/sdks/javascript/errors
+- Chrome DevTools Remote Debugging: https://developer.chrome.com/docs/devtools/remote-debugging/
+- WebRTC Troubleshooting: https://webrtc.github.io/samples/
+- Service Worker Debugging: https://developer.chrome.com/docs/workbox/
+
+---
+
+## Contact & Support
+
+If issues persist after following this guide:
+
+1. Collect debug report (see Part 7)
+2. Take screenshots of console errors
+3. Note tablet model and Android version
+4. Report issue with collected information
+
+**Important Files**:
+- Browser phone implementation: `admin/class-twp-admin.php` (lines 7400-8300)
+- Service worker: `assets/js/twp-service-worker.js`
+- CLAUDE.md: Quick reference guide

README.md

@@ -8,11 +8,20 @@ This plugin **requires** the Twilio PHP SDK v8.7.0 to function. The plugin will
 
 ## Quick Installation
 
-1. **Install the Twilio SDK** (Required):
+1. **Install the Twilio SDK** (Required - Recommended Method):
+   ```bash
+   chmod +x install-twilio-sdk-external.sh
+   ./install-twilio-sdk-external.sh
+   ```
+
+   This installs the SDK to `wp-content/twilio-sdk/` which **survives WordPress plugin updates**. The plugin will automatically detect and use this external SDK.
+
+   **Alternative Method** (SDK will be deleted during plugin updates):
    ```bash
    chmod +x install-twilio-sdk.sh
    ./install-twilio-sdk.sh
    ```
+   This installs the SDK inside the plugin folder. You'll need to reinstall the SDK after each plugin update.
 
 2. **Test the SDK installation**:
    ```bash
@@ -23,6 +32,7 @@ This plugin **requires** the Twilio PHP SDK v8.7.0 to function. The plugin will
    - Go to **Twilio** → **Settings**
    - Enter Account SID and Auth Token
    - Configure default phone numbers
+   - Set Twilio Edge Location (for browser phone - see Browser Phone Setup below)
 
 4. **Set up Phone Numbers** in Twilio Console:
    - Configure webhook URLs for voice and SMS
@@ -333,8 +343,20 @@ Comprehensive redesign of hold, transfer, and requeue functionality with profess
 2. **Configure in WordPress**:
    - Go to **Twilio** → **Settings**
    - Enter TwiML App SID
+   - **Set Twilio Edge Location**: Select the edge location closest to your users (IMPORTANT)
+     - **Auto-select closest (Recommended)**: Automatically selects the best edge
+     - **US East (Ashburn)**: For East Coast USA users
+     - **US West (Umatilla)**: For West Coast USA users
+     - **Europe - Ireland (Dublin)**: For European users
+     - **Europe - Germany (Frankfurt)**: For Central European users
+     - **Singapore**: For Southeast Asian users
+     - **Sydney**: For Australian users
+     - **Tokyo**: For Japanese users
+     - **Sao Paulo**: For South American users
    - Save settings
 
+   **Note**: Selecting the wrong edge location can cause calls to fail immediately. If you're experiencing browser phone connection issues, verify your edge location is appropriate for your region.
+
 3. **Access Browser Phone** (Admin Only):
    - Navigate to **WordPress Admin** → **Twilio** → **Browser Phone**
    - Select caller ID from available numbers
@@ -432,14 +454,34 @@ Access the full browser phone interface at: **WordPress Admin → Twilio → Bro
 - **Login Required**: Users must be logged in to access browser phone functionality
 - Check TwiML App SID is configured in WordPress admin settings
 
+#### Browser Phone Calls Failing Immediately
+If browser phone calls disconnect immediately or show HANGUP errors:
+- **Check Edge Location Setting**: Go to **Twilio** → **Settings** → **Twilio Edge Location**
+- **US Users**: Should use "Auto-select closest" (roaming), "US East (Ashburn)", or "US West (Umatilla)"
+- **International Users**: Select the edge location closest to your region
+- **Problem**: Wrong edge location causes gateway to immediately reject calls
+- **Solution**: Change edge location setting and try the call again (no restart needed)
+
 #### "Twilio SDK classes not available"
+
+**Recommended Solution** (SDK survives plugin updates):
 ```bash
-# Reinstall SDK
+# Install SDK to external location
+./install-twilio-sdk-external.sh
+# Test installation
+php test-sdk.php
+```
+
+**Alternative Solution** (will need reinstall after plugin updates):
+```bash
+# Install SDK inside plugin folder
 ./install-twilio-sdk.sh
 # Test installation
 php test-sdk.php
 ```
 
+**After WordPress Plugin Update**: If you get this error after updating the plugin and used the internal SDK method, you'll need to reinstall the SDK. This won't happen if you use the external SDK method.
+
 #### Calls Not Routing to Queues
 - Verify queue exists and is active
 - Check agent group has members
@@ -551,7 +593,19 @@ All webhooks are REST API endpoints under `/wp-json/twilio-webhook/v1/`:
 
 ## Version History
 
-### v2.3.0 (Current - September 2025) - ENTERPRISE READY
+### v2.8.9 (Current - January 2026) - SDK PERSISTENCE & BROWSER PHONE FIXES
+- **SDK PERSISTENCE**: External SDK installation option that survives WordPress plugin updates
+  - New installation script: `install-twilio-sdk-external.sh` installs SDK to `wp-content/twilio-sdk/`
+  - Automatic detection: Plugin checks external SDK location first, falls back to internal
+  - Post-update warnings: Notifies if SDK was deleted during plugin update
+  - Zero downtime: Phone system continues working through plugin updates
+- **BROWSER PHONE FIX**: Resolved US calls failing immediately with HANGUP errors
+  - Made Twilio Edge Location configurable (was hardcoded to Sydney)
+  - New setting: Twilio Edge Location with 8 options (roaming/auto-select, ashburn, umatilla, dublin, frankfurt, singapore, sydney, tokyo, sao-paulo)
+  - Default: "roaming" (auto-select closest edge for optimal performance)
+  - Critical fix: US users can now make calls successfully (were failing with Sydney edge)
+
+### v2.3.0 (September 2025) - ENTERPRISE READY
 - **SECURITY ENHANCEMENT**: Removed frontend browser phone interface, moved to admin-only access for enhanced security
 - **ASSET REDUCTION**: Eliminated 108KB of frontend assets (browser-phone-frontend.js and CSS files)
 - **SHORTCODE SECURITY**: Browser phone shortcode now provides secure redirect with authentication checks
@@ -611,4 +665,4 @@ This plugin integrates with Twilio services and requires a Twilio account.
 
 ---
 
-**Enterprise Ready v2.3.0** - Extension transfers, browser phone compatibility, and automatic agent management now production-ready with comprehensive reliability improvements.
+**Production Ready v2.8.9** - SDK persistence through plugin updates and configurable edge locations ensure zero-downtime phone operations.

admin/class-twp-admin.php

@@ -120,6 +120,15 @@ class TWP_Admin {
                 array($this, 'display_plugin_settings')
             );
 
+            add_submenu_page(
+                'twilio-wp-plugin',
+                'Mobile App',
+                'Mobile App',
+                'manage_options',
+                'twilio-wp-mobile-app',
+                array($this, 'display_mobile_app_settings')
+            );
+
             add_submenu_page(
                 'twilio-wp-plugin',
                 'Phone Schedules',
@@ -338,6 +347,25 @@ class TWP_Admin {
                         </td>
                     </tr>
 
+                    <tr>
+                        <th scope="row">Twilio Edge Location</th>
+                        <td>
+                            <?php $current_edge = get_option('twp_twilio_edge', 'roaming'); ?>
+                            <select name="twp_twilio_edge" class="regular-text">
+                                <option value="roaming" <?php selected($current_edge, 'roaming'); ?>>Auto-select closest (Recommended)</option>
+                                <option value="ashburn" <?php selected($current_edge, 'ashburn'); ?>>US East (Ashburn)</option>
+                                <option value="umatilla" <?php selected($current_edge, 'umatilla'); ?>>US West (Umatilla)</option>
+                                <option value="dublin" <?php selected($current_edge, 'dublin'); ?>>Europe - Ireland (Dublin)</option>
+                                <option value="frankfurt" <?php selected($current_edge, 'frankfurt'); ?>>Europe - Germany (Frankfurt)</option>
+                                <option value="singapore" <?php selected($current_edge, 'singapore'); ?>>Asia Pacific (Singapore)</option>
+                                <option value="sydney" <?php selected($current_edge, 'sydney'); ?>>Australia (Sydney)</option>
+                                <option value="tokyo" <?php selected($current_edge, 'tokyo'); ?>>Japan (Tokyo)</option>
+                                <option value="sao-paulo" <?php selected($current_edge, 'sao-paulo'); ?>>South America (Sao Paulo)</option>
+                            </select>
+                            <p class="description">Edge location for browser phone calls. Use "Auto-select closest" for best call quality, or select a specific region.</p>
+                        </td>
+                    </tr>
+
                 </table>
                 
                 <h2>Eleven Labs API Settings</h2>
@@ -3809,6 +3837,7 @@ class TWP_Admin {
         register_setting('twilio-wp-settings-group', 'twp_twilio_account_sid');
         register_setting('twilio-wp-settings-group', 'twp_twilio_auth_token');
         register_setting('twilio-wp-settings-group', 'twp_twiml_app_sid');
+        register_setting('twilio-wp-settings-group', 'twp_twilio_edge');
         register_setting('twilio-wp-settings-group', 'twp_elevenlabs_api_key');
         register_setting('twilio-wp-settings-group', 'twp_elevenlabs_voice_id');
         register_setting('twilio-wp-settings-group', 'twp_elevenlabs_model_id');
@@ -6987,6 +7016,7 @@ class TWP_Admin {
                 <div class="phone-interface">
                     <div class="phone-display">
                         <div id="phone-status">Ready</div>
+                        <div id="device-connection-status" style="font-size: 12px; color: #999; margin-top: 5px;">Loading...</div>
                         <div id="phone-number-display"></div>
                         <div id="call-timer" style="display: none;">00:00</div>
                     </div>
@@ -7415,6 +7445,11 @@ class TWP_Admin {
             }
             </style>
             
+            <!-- Preload and preconnect for faster loading -->
+            <link rel="preload" href="https://unpkg.com/@twilio/voice-sdk@2.11.0/dist/twilio.min.js" as="script">
+            <link rel="dns-prefetch" href="//unpkg.com">
+            <link rel="dns-prefetch" href="//chunderw-vpc-gll.twilio.com">
+            <link rel="preconnect" href="https://chunderw-vpc-gll.twilio.com" crossorigin>
             <!-- Twilio Voice SDK v2 from unpkg CDN -->
             <script src="https://unpkg.com/@twilio/voice-sdk@2.11.0/dist/twilio.min.js"></script>
             <script>
@@ -7425,6 +7460,210 @@ class TWP_Admin {
                 var callStartTime = null;
                 var tokenRefreshTimer = null;
                 var tokenExpiry = null;
+                var audioContext = null;
+                var ringtoneAudio = null;
+                var isPageVisible = true;
+                var deviceConnectionState = 'disconnected'; // disconnected, connecting, connected
+                var serviceWorkerRegistration = null;
+
+                // Initialize AudioContext for mobile audio playback
+                function initializeAudioContext() {
+                    try {
+                        if (!audioContext) {
+                            // Create AudioContext with compatibility
+                            var AudioContextClass = window.AudioContext || window.webkitAudioContext;
+                            audioContext = new AudioContextClass();
+                            console.log('AudioContext created, state:', audioContext.state);
+                        }
+
+                        // Resume AudioContext if suspended (required on mobile)
+                        if (audioContext.state === 'suspended') {
+                            audioContext.resume().then(function() {
+                                console.log('AudioContext resumed successfully');
+                            }).catch(function(err) {
+                                console.error('Failed to resume AudioContext:', err);
+                            });
+                        }
+
+                        return true;
+                    } catch (error) {
+                        console.error('Failed to initialize AudioContext:', error);
+                        return false;
+                    }
+                }
+
+                // Create and setup ringtone audio element
+                function setupRingtone() {
+                    if (!ringtoneAudio) {
+                        ringtoneAudio = new Audio();
+                        // Use a simple sine wave tone or default ringtone
+                        // For now, we'll use a data URI for a simple beep tone
+                        ringtoneAudio.loop = true;
+                        ringtoneAudio.volume = 0.7;
+
+                        // Create a simple ringtone using Web Audio API
+                        createRingtone();
+                    }
+                }
+
+                // Create ringtone using Web Audio API for better mobile support
+                function createRingtone() {
+                    // Use a simple base64-encoded beep tone (short MP3)
+                    // This is a simple 1-second beep at 800Hz
+                    // You can replace this with a custom ringtone file URL if you upload one
+
+                    // For now, use a simple approach: HTML5 Audio with error fallback
+                    // Note: On mobile, audio playback may be restricted, so we rely heavily on vibration
+                    var ringtoneUrl = '<?php echo plugins_url('assets/sounds/ringtone.mp3', dirname(__FILE__)); ?>';
+
+                    // Try to load the ringtone file
+                    ringtoneAudio.src = ringtoneUrl;
+
+                    // Fallback: if ringtone file fails to load, we'll just use vibration
+                    ringtoneAudio.addEventListener('error', function(e) {
+                        console.log('Ringtone file not found (this is normal), using vibration only for mobile');
+                        // Don't show error - vibration is sufficient for mobile
+                    }, { once: true });
+
+                    // Try to preload
+                    ringtoneAudio.load();
+                }
+
+                // Play ringtone for incoming call
+                function playRingtone() {
+                    try {
+                        // Initialize AudioContext on user interaction
+                        initializeAudioContext();
+
+                        if (ringtoneAudio) {
+                            var playPromise = ringtoneAudio.play();
+
+                            if (playPromise !== undefined) {
+                                playPromise.then(function() {
+                                    console.log('Ringtone playing');
+                                }).catch(function(error) {
+                                    console.error('Ringtone play failed:', error);
+                                    // Fallback: vibrate on mobile
+                                    vibrateDevice([300, 200, 300, 200, 300]);
+                                });
+                            }
+                        }
+
+                        // Always vibrate on mobile for better notification
+                        vibrateDevice([300, 200, 300, 200, 300]);
+
+                    } catch (error) {
+                        console.error('Error playing ringtone:', error);
+                    }
+                }
+
+                // Stop ringtone
+                function stopRingtone() {
+                    try {
+                        if (ringtoneAudio) {
+                            ringtoneAudio.pause();
+                            ringtoneAudio.currentTime = 0;
+                        }
+                    } catch (error) {
+                        console.error('Error stopping ringtone:', error);
+                    }
+                }
+
+                // Vibrate device (mobile)
+                function vibrateDevice(pattern) {
+                    if ('vibrate' in navigator) {
+                        navigator.vibrate(pattern);
+                    }
+                }
+
+                // Register service worker for PWA notifications
+                function registerServiceWorker() {
+                    if ('serviceWorker' in navigator) {
+                        var swPath = '<?php echo plugins_url('assets/js/twp-service-worker.js', dirname(__FILE__)); ?>';
+
+                        navigator.serviceWorker.register(swPath)
+                            .then(function(registration) {
+                                console.log('Service Worker registered:', registration);
+                                serviceWorkerRegistration = registration;
+
+                                // Request notification permission
+                                if ('Notification' in window && Notification.permission === 'default') {
+                                    Notification.requestPermission().then(function(permission) {
+                                        console.log('Notification permission:', permission);
+                                    });
+                                }
+                            })
+                            .catch(function(error) {
+                                console.error('Service Worker registration failed:', error);
+                            });
+                    }
+                }
+
+                // Send notification via service worker
+                function sendIncomingCallNotification(callerNumber) {
+                    // Try browser notification first
+                    if ('Notification' in window && Notification.permission === 'granted') {
+                        if (serviceWorkerRegistration && serviceWorkerRegistration.active) {
+                            serviceWorkerRegistration.active.postMessage({
+                                type: 'SHOW_NOTIFICATION',
+                                title: 'Incoming Call',
+                                body: 'Call from ' + (callerNumber || 'Unknown Number'),
+                                icon: '<?php echo plugins_url('assets/images/phone-icon.png', dirname(__FILE__)); ?>',
+                                tag: 'incoming-call',
+                                requireInteraction: true
+                            });
+                        } else {
+                            // Fallback: show notification directly
+                            new Notification('Incoming Call', {
+                                body: 'Call from ' + (callerNumber || 'Unknown Number'),
+                                icon: '<?php echo plugins_url('assets/images/phone-icon.png', dirname(__FILE__)); ?>',
+                                tag: 'incoming-call',
+                                requireInteraction: true
+                            });
+                        }
+                    }
+                }
+
+                // Monitor page visibility for background call handling
+                function setupPageVisibility() {
+                    document.addEventListener('visibilitychange', function() {
+                        isPageVisible = !document.hidden;
+                        console.log('Page visibility changed:', isPageVisible ? 'visible' : 'hidden');
+
+                        // If page becomes visible, resume audio context
+                        if (isPageVisible && audioContext) {
+                            initializeAudioContext();
+                        }
+                    });
+                }
+
+                // Update device connection status in UI
+                function updateConnectionStatus(state) {
+                    deviceConnectionState = state;
+                    var statusText = '';
+                    var statusColor = '';
+
+                    switch(state) {
+                        case 'connected':
+                            statusText = 'Connected';
+                            statusColor = '#4CAF50';
+                            break;
+                        case 'connecting':
+                            statusText = 'Connecting...';
+                            statusColor = '#FF9800';
+                            break;
+                        case 'disconnected':
+                            statusText = 'Disconnected';
+                            statusColor = '#f44336';
+                            break;
+                        default:
+                            statusText = 'Unknown';
+                            statusColor = '#999';
+                    }
+
+                    // Update status indicator (we'll add this to the UI)
+                    $('#device-connection-status').text(statusText).css('color', statusColor);
+                }
 
                 // Wait for SDK to load
                 function waitForTwilioSDK(callback) {
@@ -7441,6 +7680,18 @@ class TWP_Admin {
                 // Initialize the browser phone
                 function initializeBrowserPhone() {
                     $('#phone-status').text('Initializing...');
+                    updateConnectionStatus('connecting');
+
+                    // Initialize audio and PWA features
+                    setupRingtone();
+                    registerServiceWorker();
+                    setupPageVisibility();
+
+                    // Initialize AudioContext on first user interaction
+                    $(document).one('click touchstart', function() {
+                        console.log('User interaction detected, initializing AudioContext');
+                        initializeAudioContext();
+                    });
 
                     // Wait for SDK before proceeding
                     waitForTwilioSDK(function() {
@@ -7459,9 +7710,11 @@ class TWP_Admin {
                                 // WordPress wp_send_json_error sends the error message as response.data
                                 var errorMsg = response.data || response.error || 'Unknown error';
                                 showError('Failed to initialize: ' + errorMsg);
+                                updateConnectionStatus('disconnected');
                             }
                         }).fail(function() {
                             showError('Failed to connect to server');
+                            updateConnectionStatus('disconnected');
                         });
                     });
                 }
@@ -7509,36 +7762,77 @@ class TWP_Admin {
                             throw new Error('Twilio Voice SDK not loaded');
                         }
 
+                        console.log('Setting up Twilio Device...');
+                        updateConnectionStatus('connecting');
+
                         // Request media permissions before setting up device
                         const hasPermissions = await requestMediaPermissions();
                         if (!hasPermissions) {
+                            updateConnectionStatus('disconnected');
                             return; // Stop setup if permissions denied
                         }
 
                         // Clean up existing device if any
                         if (device) {
+                            console.log('Destroying existing device');
                             await device.destroy();
                         }
 
+                        // Detect if we're on Android/mobile for specific settings
+                        var isAndroid = /Android/i.test(navigator.userAgent);
+                        var isMobile = /Android|iPhone|iPad|iPod/i.test(navigator.userAgent);
+
+                        console.log('Device detection - Android:', isAndroid, 'Mobile:', isMobile);
+
+                        // Android-specific audio constraints for better WebRTC performance
+                        var audioConstraints = {
+                            echoCancellation: true,
+                            noiseSuppression: true,
+                            autoGainControl: true
+                        };
+
+                        // Additional Android-specific settings
+                        if (isAndroid) {
+                            audioConstraints.googEchoCancellation = true;
+                            audioConstraints.googNoiseSuppression = true;
+                            audioConstraints.googAutoGainControl = true;
+                            audioConstraints.googHighpassFilter = true;
+                        }
+
                         // Setup Twilio Voice SDK v2 Device
                         // Note: Voice SDK v2 uses Twilio.Device directly, not Twilio.Voice.Device
                         device = new Twilio.Device(token, {
                             logLevel: 1, // 0 = TRACE, 1 = DEBUG
                             codecPreferences: ['opus', 'pcmu'],
-                            edge: 'sydney' // Or closest edge location
+                            edge: '<?php echo esc_js(get_option('twp_twilio_edge', 'roaming')); ?>',
+                            enableIceRestart: true, // Important for mobile network switching
+                            audioConstraints: audioConstraints,
+                            maxCallSignalingTimeoutMs: 30000, // 30 seconds timeout for mobile
+                            closeProtection: true // Warn before closing during call
                         });
 
+                        console.log('Twilio Device created with audio constraints:', audioConstraints);
+
                         // Set up event handlers BEFORE registering
                         // Device registered and ready
                         device.on('registered', function() {
                             console.log('Device registered successfully');
                             $('#phone-status').text('Ready').css('color', '#4CAF50');
                             $('#call-btn').prop('disabled', false);
+                            updateConnectionStatus('connected');
+                        });
+
+                        // Device unregistered
+                        device.on('unregistered', function() {
+                            console.log('Device unregistered');
+                            updateConnectionStatus('disconnected');
                         });
 
                         // Handle errors
                         device.on('error', function(error) {
                             console.error('Twilio Device Error:', error);
+                            console.error('Error code:', error.code, 'Message:', error.message);
+                            updateConnectionStatus('disconnected');
 
                             var errorMsg = error.message || error.toString();
 
@@ -7551,6 +7845,15 @@ class TWP_Admin {
                                 errorMsg = 'Token error: ' + errorMsg + ' - The page will automatically try to refresh the token.';
                                 // Try to reinitialize after token error
                                 setTimeout(initializeBrowserPhone, 5000);
+                            } else if (errorMsg.includes('31005') || errorMsg.includes('Connection error')) {
+                                errorMsg = 'Connection error: Check your internet connection. If on mobile, try switching between WiFi and cellular data.';
+                                // Retry connection
+                                setTimeout(function() {
+                                    if (device) {
+                                        console.log('Attempting to reconnect device...');
+                                        device.register();
+                                    }
+                                }, 3000);
                             }
 
                             showError(errorMsg);
@@ -7558,16 +7861,32 @@ class TWP_Admin {
 
                         // Handle incoming calls
                         device.on('incoming', function(call) {
+                            console.log('Incoming call from:', call.parameters.From);
+                            console.log('Call SID:', call.parameters.CallSid);
+                            console.log('Device connection state:', deviceConnectionState);
+
                             currentCall = call;
+                            var callerNumber = call.parameters.From || 'Unknown Number';
+
                             $('#phone-status').text('Incoming Call').css('color', '#FF9800');
-                            $('#phone-number-display').text(call.parameters.From || 'Unknown Number');
+                            $('#phone-number-display').text(callerNumber);
                             $('#call-btn').hide();
                             $('#answer-btn').show();
 
+                            // Play ringtone and show notification
+                            playRingtone();
+
+                            // If page is in background, send notification
+                            if (!isPageVisible) {
+                                console.log('Page in background, sending notification');
+                                sendIncomingCallNotification(callerNumber);
+                            }
+
                             // Setup call event handlers
                             setupCallHandlers(call);
 
                             if ($('#auto-answer').is(':checked')) {
+                                console.log('Auto-answer enabled, accepting call');
                                 call.accept();
                             }
                         });
@@ -7590,6 +7909,8 @@ class TWP_Admin {
                 function setupCallHandlers(call) {
                     // Call accepted/connected
                     call.on('accept', function() {
+                        console.log('Call accepted and connected');
+                        stopRingtone();
                         $('#phone-status').text('Connected').css('color', '#2196F3');
                         $('#call-btn').hide();
                         $('#answer-btn').hide();
@@ -7601,6 +7922,8 @@ class TWP_Admin {
 
                     // Call disconnected
                     call.on('disconnect', function() {
+                        console.log('Call disconnected');
+                        stopRingtone();
                         currentCall = null;
                         $('#phone-status').text('Ready').css('color', '#4CAF50');
                         $('#hangup-btn').hide();
@@ -7618,6 +7941,8 @@ class TWP_Admin {
 
                     // Call rejected
                     call.on('reject', function() {
+                        console.log('Call rejected');
+                        stopRingtone();
                         currentCall = null;
                         $('#phone-status').text('Ready').css('color', '#4CAF50');
                         $('#answer-btn').hide();
@@ -7626,6 +7951,8 @@ class TWP_Admin {
 
                     // Call cancelled (by caller before answer)
                     call.on('cancel', function() {
+                        console.log('Call cancelled by caller');
+                        stopRingtone();
                         currentCall = null;
                         $('#phone-status').text('Missed Call').css('color', '#FF9800');
                         $('#answer-btn').hide();
@@ -7634,6 +7961,26 @@ class TWP_Admin {
                             $('#phone-status').text('Ready').css('color', '#4CAF50');
                         }, 3000);
                     });
+
+                    // Call error
+                    call.on('error', function(error) {
+                        console.error('Call error:', error);
+                        console.error('Error code:', error.code, 'Message:', error.message);
+                        stopRingtone();
+
+                        var errorMsg = error.message || error.toString();
+
+                        // Specific error handling for Android/mobile
+                        if (error.code === 31005) {
+                            errorMsg = 'Connection failed: Check your network connection. Try switching between WiFi and cellular data.';
+                        } else if (error.code === 31201 || error.code === 31204) {
+                            errorMsg = 'Call setup failed: Please try again. If the problem persists, refresh the page.';
+                        } else if (error.code === 31208) {
+                            errorMsg = 'Media connection failed: Check microphone permissions and try again.';
+                        }
+
+                        showError('Call error: ' + errorMsg);
+                    });
                 }
                 
                 function refreshToken() {
@@ -7744,11 +8091,15 @@ class TWP_Admin {
                     $('#caller-id-select').html('<option value="">Error loading numbers</option>');
                 });
                 
-                // Dialpad functionality
-                $('.dialpad-btn').on('click', function() {
+                // Dialpad functionality (support both click and touch events)
+                $('.dialpad-btn').on('click touchend', function(e) {
+                    e.preventDefault(); // Prevent duplicate events
                     var digit = $(this).data('digit');
                     var currentVal = $('#phone-number-input').val();
                     $('#phone-number-input').val(currentVal + digit);
+
+                    // Initialize AudioContext on user interaction (mobile requirement)
+                    initializeAudioContext();
                 });
                 
                 // Call button
@@ -7809,8 +8160,45 @@ class TWP_Admin {
                 
                 // Answer button
                 $('#answer-btn').on('click', function() {
-                    if (currentCall) {
+                    console.log('Answer button clicked');
+                    console.log('Device connection state:', deviceConnectionState);
+                    console.log('Current call:', currentCall);
+
+                    if (!currentCall) {
+                        console.error('No current call to answer');
+                        showError('No incoming call to answer');
+                        return;
+                    }
+
+                    // Check device connection state
+                    if (deviceConnectionState !== 'connected') {
+                        console.error('Device not connected, state:', deviceConnectionState);
+                        showError('Phone not connected. Reconnecting...');
+
+                        // Try to reconnect
+                        if (device) {
+                            device.register().then(function() {
+                                console.log('Device reconnected, answering call');
+                                if (currentCall) {
+                                    currentCall.accept();
+                                }
+                            }).catch(function(err) {
+                                console.error('Failed to reconnect device:', err);
+                                showError('Failed to reconnect. Please refresh the page.');
+                            });
+                        }
+                        return;
+                    }
+
+                    // Initialize AudioContext before accepting (important for mobile)
+                    initializeAudioContext();
+
+                    try {
+                        console.log('Accepting call...');
                         currentCall.accept();
+                    } catch (error) {
+                        console.error('Error accepting call:', error);
+                        showError('Failed to answer call: ' + error.message);
                     }
                 });
                 
@@ -7850,16 +8238,40 @@ class TWP_Admin {
                 });
                 
                 // Check if SDK loaded and initialize
+                // Poll for Twilio SDK availability (window.load may not fire on mobile)
+                var sdkCheckAttempts = 0;
+                var maxSdkCheckAttempts = 100; // 5 seconds max (100 * 50ms)
+
+                function checkAndInitialize() {
+                    sdkCheckAttempts++;
+
+                    if (typeof Twilio !== 'undefined' && Twilio.Device) {
+                        console.log('Twilio SDK loaded successfully');
+                        initializeBrowserPhone();
+                    } else if (sdkCheckAttempts < maxSdkCheckAttempts) {
+                        // Keep checking every 50ms for faster response
+                        setTimeout(checkAndInitialize, 50);
+                    } else {
+                        showError('Twilio Voice SDK failed to load. Please check your internet connection and try refreshing the page.');
+                        console.error('Twilio SDK not found after ' + sdkCheckAttempts + ' attempts.');
+                    }
+                }
+
+                // Check immediately - SDK script is synchronous so should be loaded
+                // If not ready yet (mobile), polling will catch it
+                if (typeof Twilio !== 'undefined' && Twilio.Device) {
+                    console.log('Twilio SDK already loaded');
+                    initializeBrowserPhone();
+                } else {
+                    // Start polling immediately
+                    checkAndInitialize();
+                }
+
+                // Also keep the window.load as backup for desktop
                 $(window).on('load', function() {
-                    setTimeout(function() {
-                        if (typeof Twilio === 'undefined') {
-                            showError('Twilio Voice SDK failed to load. Please check your internet connection and try refreshing the page.');
-                            console.error('Twilio SDK not found. Script may be blocked or failed to load.');
-                        } else {
-                            console.log('Twilio SDK loaded successfully');
-                            initializeBrowserPhone();
-                        }
-                    }, 1000);
+                    if (typeof Twilio !== 'undefined' && !device) {
+                        initializeBrowserPhone();
+                    }
                 });
                 
                 // Clean up on page unload
@@ -10050,4 +10462,11 @@ class TWP_Admin {
         }
     }
 
+    /**
+     * Display mobile app settings page
+     */
+    public function display_mobile_app_settings() {
+        require_once TWP_PLUGIN_DIR . 'admin/mobile-app-settings.php';
+    }
+
 }

admin/mobile-app-settings.php

@@ -0,0 +1,397 @@
+<?php
+/**
+ * Mobile App Settings Page
+ */
+
+// Prevent direct access
+if (!defined('WPINC')) {
+    die;
+}
+
+// Check user capabilities
+if (!current_user_can('manage_options')) {
+    wp_die(__('You do not have sufficient permissions to access this page.'));
+}
+
+// Handle manual update check
+if (isset($_POST['twp_check_updates']) && check_admin_referer('twp_mobile_settings')) {
+    require_once TWP_PLUGIN_DIR . 'includes/class-twp-auto-updater.php';
+    $updater = new TWP_Auto_Updater();
+    $update_result = $updater->manual_check_for_updates();
+}
+
+// Handle test notification
+if (isset($_POST['twp_test_notification']) && check_admin_referer('twp_mobile_settings')) {
+    require_once TWP_PLUGIN_DIR . 'includes/class-twp-fcm.php';
+    $fcm = new TWP_FCM();
+    $test_user_id = get_current_user_id();
+    $notification_sent = $fcm->send_test_notification($test_user_id);
+
+    if ($notification_sent) {
+        $notification_result = array('success' => true, 'message' => 'Test notification sent successfully!');
+    } else {
+        $notification_result = array('success' => false, 'message' => 'Failed to send test notification. Check FCM configuration.');
+    }
+}
+
+// Save settings
+if (isset($_POST['twp_save_mobile_settings']) && check_admin_referer('twp_mobile_settings')) {
+    update_option('twp_fcm_project_id', sanitize_text_field($_POST['twp_fcm_project_id']));
+    // Service account JSON — validate it parses as JSON before saving
+    $sa_json_raw = isset($_POST['twp_fcm_service_account_json']) ? wp_unslash($_POST['twp_fcm_service_account_json']) : '';
+    if (!empty($sa_json_raw)) {
+        $sa_parsed = json_decode($sa_json_raw, true);
+        if ($sa_parsed && isset($sa_parsed['client_email'], $sa_parsed['private_key'])) {
+            update_option('twp_fcm_service_account_json', $sa_json_raw);
+        } else {
+            $sa_json_error = 'Invalid service account JSON — must contain client_email and private_key fields.';
+        }
+    } else {
+        update_option('twp_fcm_service_account_json', '');
+    }
+    update_option('twp_auto_update_enabled', isset($_POST['twp_auto_update_enabled']) ? '1' : '0');
+    update_option('twp_gitea_repo', sanitize_text_field($_POST['twp_gitea_repo']));
+    update_option('twp_gitea_token', sanitize_text_field($_POST['twp_gitea_token']));
+
+    $settings_saved = true;
+}
+
+// Get current settings
+$fcm_project_id = get_option('twp_fcm_project_id', '');
+$fcm_service_account_json = get_option('twp_fcm_service_account_json', '');
+$fcm_sa_configured = !empty($fcm_service_account_json) && !empty($fcm_project_id);
+$auto_update_enabled = get_option('twp_auto_update_enabled', '1') === '1';
+$gitea_repo = get_option('twp_gitea_repo', 'wp-plugins/twilio-wp-plugin');
+$gitea_token = get_option('twp_gitea_token', '');
+
+// Get update status
+require_once TWP_PLUGIN_DIR . 'includes/class-twp-auto-updater.php';
+$updater = new TWP_Auto_Updater();
+$update_status = $updater->get_update_status();
+
+// Get mobile app statistics
+global $wpdb;
+$sessions_table = $wpdb->prefix . 'twp_mobile_sessions';
+$active_sessions = $wpdb->get_var("SELECT COUNT(*) FROM $sessions_table WHERE is_active = 1 AND expires_at > NOW()");
+$total_sessions = $wpdb->get_var("SELECT COUNT(*) FROM $sessions_table");
+
+?>
+
+<div class="wrap">
+    <h1><?php echo esc_html(get_admin_page_title()); ?></h1>
+
+    <?php if (isset($settings_saved)): ?>
+        <div class="notice notice-success is-dismissible">
+            <p><strong>Settings saved successfully!</strong></p>
+        </div>
+    <?php endif; ?>
+
+    <?php if (isset($update_result)): ?>
+        <div class="notice notice-<?php echo $update_result['update_available'] ? 'warning' : 'success'; ?> is-dismissible">
+            <p><strong><?php echo esc_html($update_result['message']); ?></strong></p>
+        </div>
+    <?php endif; ?>
+
+    <?php if (isset($notification_result)): ?>
+        <div class="notice notice-<?php echo $notification_result['success'] ? 'success' : 'error'; ?> is-dismissible">
+            <p><strong><?php echo esc_html($notification_result['message']); ?></strong></p>
+        </div>
+    <?php endif; ?>
+
+    <?php if (isset($sa_json_error)): ?>
+        <div class="notice notice-error is-dismissible">
+            <p><strong><?php echo esc_html($sa_json_error); ?></strong></p>
+        </div>
+    <?php endif; ?>
+
+    <div class="twp-mobile-settings">
+        <!-- Mobile App Overview -->
+        <div class="card" style="max-width: 100%; margin-bottom: 20px;">
+            <h2>Mobile App Overview</h2>
+            <table class="widefat">
+                <tbody>
+                    <tr>
+                        <td><strong>API Endpoint:</strong></td>
+                        <td><code><?php echo esc_html(site_url('/wp-json/twilio-mobile/v1')); ?></code></td>
+                    </tr>
+                    <tr>
+                        <td><strong>Active Sessions:</strong></td>
+                        <td><?php echo esc_html($active_sessions); ?> active / <?php echo esc_html($total_sessions); ?> total</td>
+                    </tr>
+                    <tr>
+                        <td><strong>Plugin Version:</strong></td>
+                        <td><?php echo esc_html(TWP_VERSION); ?></td>
+                    </tr>
+                </tbody>
+            </table>
+        </div>
+
+        <!-- Mobile App Settings Form -->
+        <form method="post" action="">
+            <?php wp_nonce_field('twp_mobile_settings'); ?>
+
+            <!-- FCM Configuration -->
+            <div class="card" style="max-width: 100%; margin-bottom: 20px;">
+                <h2>Firebase Cloud Messaging (FCM) — HTTP v2 API</h2>
+                <p>Configure FCM using a service account for push notifications. The legacy server key API has been retired by Google.</p>
+
+                <table class="form-table">
+                    <tr>
+                        <th scope="row">
+                            <label for="twp_fcm_project_id">Firebase Project ID</label>
+                        </th>
+                        <td>
+                            <input type="text"
+                                   id="twp_fcm_project_id"
+                                   name="twp_fcm_project_id"
+                                   value="<?php echo esc_attr($fcm_project_id); ?>"
+                                   class="regular-text"
+                                   placeholder="my-project-12345">
+                            <p class="description">
+                                Found in Firebase Console &gt; Project Settings &gt; General &gt; Project ID
+                            </p>
+                        </td>
+                    </tr>
+                    <tr>
+                        <th scope="row">
+                            <label for="twp_fcm_service_account_json">Service Account JSON</label>
+                        </th>
+                        <td>
+                            <textarea id="twp_fcm_service_account_json"
+                                      name="twp_fcm_service_account_json"
+                                      rows="6"
+                                      class="large-text code"
+                                      placeholder='Paste the entire contents of your service account JSON file...'><?php echo esc_textarea($fcm_service_account_json); ?></textarea>
+                            <p class="description">
+                                Generate in Firebase Console &gt; Project Settings &gt; Service Accounts &gt; Generate New Private Key.
+                                Paste the entire JSON file contents here. Must contain <code>client_email</code> and <code>private_key</code> fields.
+                            </p>
+                            <?php if ($fcm_sa_configured): ?>
+                                <p style="color: #00a32a; margin-top: 5px;">&#10003; Service account configured</p>
+                            <?php endif; ?>
+                        </td>
+                    </tr>
+                </table>
+
+                <?php if ($fcm_sa_configured): ?>
+                    <p>
+                        <button type="submit" name="twp_test_notification" class="button">
+                            Send Test Notification
+                        </button>
+                        <span class="description">Send a test notification to your devices</span>
+                    </p>
+                <?php endif; ?>
+            </div>
+
+            <!-- Auto-Update Settings -->
+            <div class="card" style="max-width: 100%; margin-bottom: 20px;">
+                <h2>Automatic Updates</h2>
+
+                <table class="form-table">
+                    <tr>
+                        <th scope="row">Current Version</th>
+                        <td>
+                            <strong><?php echo esc_html($update_status['current_version']); ?></strong>
+                            <?php if ($update_status['update_available']): ?>
+                                <span style="color: #d63638; margin-left: 10px;">
+                                    ⚠ Update available: <?php echo esc_html($update_status['latest_version']); ?>
+                                </span>
+                            <?php else: ?>
+                                <span style="color: #00a32a; margin-left: 10px;">✓ Up to date</span>
+                            <?php endif; ?>
+                        </td>
+                    </tr>
+                    <tr>
+                        <th scope="row">
+                            <label for="twp_auto_update_enabled">Enable Auto-Updates</label>
+                        </th>
+                        <td>
+                            <label>
+                                <input type="checkbox"
+                                       id="twp_auto_update_enabled"
+                                       name="twp_auto_update_enabled"
+                                       value="1"
+                                       <?php checked($auto_update_enabled); ?>>
+                                Automatically check for updates every 12 hours
+                            </label>
+                        </td>
+                    </tr>
+                    <tr>
+                        <th scope="row">
+                            <label for="twp_gitea_repo">Gitea Repository</label>
+                        </th>
+                        <td>
+                            <input type="text"
+                                   id="twp_gitea_repo"
+                                   name="twp_gitea_repo"
+                                   value="<?php echo esc_attr($gitea_repo); ?>"
+                                   class="regular-text"
+                                   placeholder="org/repo-name">
+                            <p class="description">
+                                Format: organization/repository (e.g., wp-plugins/twilio-wp-plugin)
+                            </p>
+                        </td>
+                    </tr>
+                    <tr>
+                        <th scope="row">
+                            <label for="twp_gitea_token">Gitea Access Token</label>
+                        </th>
+                        <td>
+                            <input type="password"
+                                   id="twp_gitea_token"
+                                   name="twp_gitea_token"
+                                   value="<?php echo esc_attr($gitea_token); ?>"
+                                   class="regular-text"
+                                   placeholder="">
+                            <p class="description">
+                                Optional. Required only for private repositories. Create token at:
+                                <a href="https://repo.anhonesthost.net/user/settings/applications" target="_blank">Gitea Settings > Applications</a>
+                            </p>
+                        </td>
+                    </tr>
+                    <tr>
+                        <th scope="row">Last Update Check</th>
+                        <td>
+                            <?php
+                            $last_check = $update_status['last_check'];
+                            if ($last_check > 0) {
+                                echo esc_html(human_time_diff($last_check, current_time('timestamp')) . ' ago');
+                            } else {
+                                echo 'Never';
+                            }
+                            ?>
+                            <button type="submit" name="twp_check_updates" class="button" style="margin-left: 15px;">
+                                Check Now
+                            </button>
+                        </td>
+                    </tr>
+                </table>
+            </div>
+
+            <!-- API Documentation -->
+            <div class="card" style="max-width: 100%; margin-bottom: 20px;">
+                <h2>API Endpoints</h2>
+                <p>Available REST API endpoints for mobile app development:</p>
+
+                <table class="widefat striped">
+                    <thead>
+                        <tr>
+                            <th>Endpoint</th>
+                            <th>Method</th>
+                            <th>Description</th>
+                        </tr>
+                    </thead>
+                    <tbody>
+                        <tr>
+                            <td><code>/twilio-mobile/v1/auth/login</code></td>
+                            <td>POST</td>
+                            <td>Authenticate and get JWT tokens</td>
+                        </tr>
+                        <tr>
+                            <td><code>/twilio-mobile/v1/auth/refresh</code></td>
+                            <td>POST</td>
+                            <td>Refresh access token</td>
+                        </tr>
+                        <tr>
+                            <td><code>/twilio-mobile/v1/agent/status</code></td>
+                            <td>GET/POST</td>
+                            <td>Get or update agent status</td>
+                        </tr>
+                        <tr>
+                            <td><code>/twilio-mobile/v1/queues/state</code></td>
+                            <td>GET</td>
+                            <td>Get all queue states</td>
+                        </tr>
+                        <tr>
+                            <td><code>/twilio-mobile/v1/calls/{call_sid}/accept</code></td>
+                            <td>POST</td>
+                            <td>Accept a queued call</td>
+                        </tr>
+                        <tr>
+                            <td><code>/twilio-mobile/v1/stream/events</code></td>
+                            <td>GET</td>
+                            <td>Server-Sent Events stream for real-time updates</td>
+                        </tr>
+                        <tr>
+                            <td><code>/twilio-mobile/v1/voice/token</code></td>
+                            <td>GET</td>
+                            <td>Get Twilio Voice access token for VoIP</td>
+                        </tr>
+                    </tbody>
+                </table>
+
+                <p style="margin-top: 15px;">
+                    <strong>Authentication:</strong> All endpoints (except login/refresh) require
+                    <code>Authorization: Bearer &lt;access_token&gt;</code> header.
+                </p>
+            </div>
+
+            <p class="submit">
+                <button type="submit" name="twp_save_mobile_settings" class="button button-primary">
+                    Save Settings
+                </button>
+            </p>
+        </form>
+
+        <!-- Active Sessions -->
+        <?php if ($active_sessions > 0): ?>
+            <div class="card" style="max-width: 100%; margin-bottom: 20px;">
+                <h2>Active Mobile Sessions</h2>
+                <?php
+                $sessions = $wpdb->get_results("
+                    SELECT s.user_id, s.device_info, s.logged_in_at, s.last_used, u.user_login, u.display_name
+                    FROM $sessions_table s
+                    JOIN {$wpdb->users} u ON s.user_id = u.ID
+                    WHERE s.is_active = 1 AND s.expires_at > NOW()
+                    ORDER BY s.last_used DESC
+                    LIMIT 20
+                ");
+                ?>
+                <table class="widefat striped">
+                    <thead>
+                        <tr>
+                            <th>User</th>
+                            <th>Device</th>
+                            <th>Last Activity</th>
+                        </tr>
+                    </thead>
+                    <tbody>
+                        <?php foreach ($sessions as $session): ?>
+                            <tr>
+                                <td><?php echo esc_html($session->display_name ?: $session->user_login); ?></td>
+                                <td><?php echo esc_html($session->device_info ?: 'Unknown device'); ?></td>
+                                <td><?php echo esc_html(human_time_diff(strtotime($session->last_used), current_time('timestamp')) . ' ago'); ?></td>
+                            </tr>
+                        <?php endforeach; ?>
+                    </tbody>
+                </table>
+            </div>
+        <?php endif; ?>
+    </div>
+</div>
+
+<style>
+.twp-mobile-settings .card {
+    padding: 20px;
+    background: #fff;
+    border: 1px solid #ccd0d4;
+    box-shadow: 0 1px 1px rgba(0,0,0,.04);
+}
+
+.twp-mobile-settings .card h2 {
+    margin-top: 0;
+    padding-bottom: 10px;
+    border-bottom: 1px solid #f0f0f1;
+}
+
+.twp-mobile-settings code {
+    background: #f0f0f1;
+    padding: 2px 6px;
+    border-radius: 3px;
+    font-size: 13px;
+}
+
+.twp-mobile-settings table.widefat td code {
+    background: #f6f7f7;
+}
+</style>

assets/images/README.md

@@ -0,0 +1,42 @@
+# Browser Phone Images
+
+## Required Images for PWA Notifications
+
+Place the following image files in this directory for browser push notifications:
+
+### phone-icon.png
+- **Purpose**: Main notification icon
+- **Size**: 192x192 pixels (recommended)
+- **Format**: PNG with transparency
+- **Usage**: Shown in browser notifications for incoming calls
+
+### phone-badge.png
+- **Purpose**: Small badge icon for notifications
+- **Size**: 96x96 pixels or 72x72 pixels
+- **Format**: PNG with transparency
+- **Usage**: Displayed in the notification badge area (Android)
+
+## Fallback Behavior
+
+If these images are not present, the browser will:
+- Use a default browser notification icon
+- Still display text-based notifications
+- Functionality will not be affected
+
+## Image Creation Tips
+
+- Use a simple, recognizable phone icon
+- Ensure good contrast for visibility
+- Test on both light and dark backgrounds
+- Transparent backgrounds work best
+- Use a consistent color scheme with your brand
+
+## Example Resources
+
+- Google Material Icons: https://fonts.google.com/icons
+- Font Awesome: https://fontawesome.com/
+- Flaticon: https://www.flaticon.com/
+- Or create custom icons using tools like:
+  - Figma
+  - Adobe Illustrator
+  - Inkscape (free)

assets/js/twp-service-worker.js

@@ -72,7 +72,23 @@ self.addEventListener('push', function(event) {
 
 // Handle messages from the main script
 self.addEventListener('message', function(event) {
+    console.log('TWP Service Worker: Message received', event.data);
+
     if (event.data && event.data.type === 'SHOW_NOTIFICATION') {
-        self.registration.showNotification(event.data.title, event.data.options);
+        const options = {
+            body: event.data.body || 'You have a new call waiting',
+            icon: event.data.icon || '/wp-content/plugins/twilio-wp-plugin/assets/images/phone-icon.png',
+            badge: '/wp-content/plugins/twilio-wp-plugin/assets/images/phone-badge.png',
+            vibrate: [300, 200, 300, 200, 300],
+            tag: event.data.tag || 'incoming-call',
+            requireInteraction: event.data.requireInteraction !== undefined ? event.data.requireInteraction : true,
+            data: event.data.data || {}
+        };
+
+        console.log('TWP Service Worker: Showing notification', event.data.title, options);
+
+        event.waitUntil(
+            self.registration.showNotification(event.data.title || 'Incoming Call', options)
+        );
     }
 });

assets/sounds/README.md

@@ -0,0 +1,36 @@
+# Ringtone Audio Files
+
+## Custom Ringtone
+
+To add a custom ringtone for incoming calls in the browser phone:
+
+1. Place your ringtone audio file in this directory
+2. Name it: `ringtone.mp3`
+3. Recommended format: MP3, under 5 seconds, loopable
+
+## Fallback Behavior
+
+If no ringtone file is present, the browser phone will:
+- Use device vibration on mobile devices (Android, iOS)
+- Rely on browser notifications to alert users
+- Display visual indicators in the browser interface
+
+## Supported Audio Formats
+
+- **MP3** (recommended) - Best compatibility across browsers
+- **OGG** - Good for Firefox, Chrome
+- **WAV** - Larger file size but universal support
+
+## File Requirements
+
+- Maximum file size: 100KB recommended
+- Duration: 1-5 seconds (will loop)
+- Sample rate: 44.1kHz or 48kHz
+- Bitrate: 128kbps or higher
+
+## Example Ringtone Sources
+
+You can find free ringtone files at:
+- https://freesound.org/
+- https://incompetech.com/
+- Or create your own using Audacity or similar tools

includes/class-twp-activator.php

@@ -52,7 +52,8 @@ class TWP_Activator {
             'twp_callbacks',
             'twp_call_recordings',
             'twp_user_extensions',
-            'twp_queue_assignments'
+            'twp_queue_assignments',
+            'twp_mobile_sessions'
         );
         
         $missing_tables = array();
@@ -362,6 +363,24 @@ class TWP_Activator {
             KEY started_at (started_at)
         ) $charset_collate;";
 
+        // Mobile sessions table
+        $table_mobile_sessions = $wpdb->prefix . 'twp_mobile_sessions';
+        $sql_mobile_sessions = "CREATE TABLE $table_mobile_sessions (
+            id int(11) NOT NULL AUTO_INCREMENT,
+            user_id bigint(20) NOT NULL,
+            refresh_token varchar(500) NOT NULL,
+            fcm_token text,
+            device_info text,
+            created_at datetime DEFAULT CURRENT_TIMESTAMP,
+            expires_at datetime NOT NULL,
+            last_used datetime DEFAULT CURRENT_TIMESTAMP,
+            is_active tinyint(1) DEFAULT 1,
+            PRIMARY KEY (id),
+            KEY user_id (user_id),
+            KEY is_active (is_active),
+            KEY expires_at (expires_at)
+        ) $charset_collate;";
+
         dbDelta($sql_schedules);
         dbDelta($sql_queues);
         dbDelta($sql_queued_calls);
@@ -377,6 +396,7 @@ class TWP_Activator {
         dbDelta($sql_recordings);
         dbDelta($sql_user_extensions);
         dbDelta($sql_queue_assignments);
+        dbDelta($sql_mobile_sessions);
 
         // Add missing columns for existing installations
         self::add_missing_columns();

includes/class-twp-auto-updater.php

@@ -0,0 +1,291 @@
+<?php
+/**
+ * Automatic Plugin Updater
+ *
+ * Checks for updates from Gitea repository and installs them automatically
+ */
+class TWP_Auto_Updater {
+
+    private $plugin_slug = 'twilio-wp-plugin';
+    private $plugin_basename;
+    private $gitea_repo = 'wp-plugins/twilio-wp-plugin';
+    private $gitea_api_url;
+    private $current_version;
+    private $gitea_base_url = 'https://repo.anhonesthost.net';
+
+    /**
+     * Constructor
+     */
+    public function __construct() {
+        $this->plugin_basename = plugin_basename(dirname(dirname(__FILE__)) . '/twilio-wp-plugin.php');
+        $this->current_version = defined('TWP_VERSION') ? TWP_VERSION : '0.0.0';
+        $this->gitea_api_url = $this->gitea_base_url . '/api/v1/repos/' . $this->gitea_repo . '/releases/latest';
+    }
+
+    /**
+     * Initialize updater hooks
+     */
+    public function init() {
+        // Hook into WordPress update checks
+        add_filter('pre_set_site_transient_update_plugins', array($this, 'check_for_update'));
+        add_filter('plugins_api', array($this, 'plugin_info'), 10, 3);
+
+        // Add settings page for manual check
+        add_action('admin_init', array($this, 'register_settings'));
+
+        // Add update check to admin notices
+        if (get_option('twp_auto_update_enabled', '1') === '1') {
+            add_action('admin_init', array($this, 'maybe_auto_check_updates'));
+        }
+    }
+
+    /**
+     * Register auto-update settings
+     */
+    public function register_settings() {
+        register_setting('twp_settings', 'twp_auto_update_enabled');
+        register_setting('twp_settings', 'twp_gitea_repo');
+        register_setting('twp_settings', 'twp_gitea_token'); // Optional for private repos
+    }
+
+    /**
+     * Check for updates periodically
+     */
+    public function maybe_auto_check_updates() {
+        $last_check = get_option('twp_last_update_check', 0);
+        $check_interval = 12 * HOUR_IN_SECONDS; // Check every 12 hours
+
+        if (time() - $last_check > $check_interval) {
+            update_option('twp_last_update_check', time());
+            // Force WordPress to check for updates
+            wp_clean_plugins_cache();
+        }
+    }
+
+    /**
+     * Check for plugin updates
+     */
+    public function check_for_update($transient) {
+        if (empty($transient->checked)) {
+            return $transient;
+        }
+
+        // Get Gitea repo from settings if available
+        $custom_repo = get_option('twp_gitea_repo', '');
+        if (!empty($custom_repo)) {
+            $this->gitea_repo = $custom_repo;
+            $this->gitea_api_url = $this->gitea_base_url . '/api/v1/repos/' . $this->gitea_repo . '/releases/latest';
+        }
+
+        $update_info = $this->get_latest_release();
+
+        if ($update_info && version_compare($this->current_version, $update_info->version, '<')) {
+            $plugin_data = array(
+                'id' => 'twilio-wp-plugin',
+                'slug' => $this->plugin_slug,
+                'plugin' => $this->plugin_basename,
+                'new_version' => $update_info->version,
+                'url' => $update_info->homepage,
+                'package' => $update_info->download_url,
+                'tested' => '6.8',
+                'requires' => '5.8',
+                'requires_php' => '7.4',
+                'icons' => array(),
+                'banners' => array(),
+                'compatibility' => new stdClass(),
+            );
+
+            $transient->response[$this->plugin_basename] = (object) $plugin_data;
+
+            error_log("TWP Auto-Updater: New version {$update_info->version} available (current: {$this->current_version})");
+        } else {
+            error_log("TWP Auto-Updater: No updates available (current: {$this->current_version})");
+        }
+
+        return $transient;
+    }
+
+    /**
+     * Get plugin information for update screen
+     */
+    public function plugin_info($false, $action, $args) {
+        if ($action !== 'plugin_information') {
+            return $false;
+        }
+
+        if (!isset($args->slug) || $args->slug !== $this->plugin_slug) {
+            return $false;
+        }
+
+        $update_info = $this->get_latest_release();
+
+        if (!$update_info) {
+            return $false;
+        }
+
+        $plugin_info = new stdClass();
+        $plugin_info->name = 'Twilio WP Plugin';
+        $plugin_info->slug = $this->plugin_slug;
+        $plugin_info->version = $update_info->version;
+        $plugin_info->author = '<a href="https://cybercove.io/">Joshua Knapp</a>';
+        $plugin_info->homepage = $update_info->homepage;
+        $plugin_info->download_link = $update_info->download_url;
+        $plugin_info->requires = '5.8';
+        $plugin_info->tested = '6.8';
+        $plugin_info->requires_php = '7.4';
+        $plugin_info->last_updated = $update_info->release_date;
+        $plugin_info->downloaded = 10;
+
+        $plugin_info->sections = array(
+            'description' => '<p>Twilio WordPress Plugin for call management and mobile app support.</p>',
+            'changelog' => '<pre>' . esc_html($update_info->changelog) . '</pre>',
+            'installation' => '<p>Upload the plugin to your WordPress site and activate it.</p>'
+        );
+
+        return $plugin_info;
+    }
+
+    /**
+     * Get latest release information from Gitea
+     */
+    private function get_latest_release() {
+        // Check cache first (1 hour)
+        $cache_key = 'twp_latest_release';
+        $cached = get_transient($cache_key);
+
+        if ($cached !== false) {
+            return $cached;
+        }
+
+        // Use cURL for Gitea API
+        $ch = curl_init();
+        curl_setopt($ch, CURLOPT_URL, $this->gitea_api_url);
+        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+        curl_setopt($ch, CURLOPT_HTTPHEADER, array('Accept: application/json'));
+        curl_setopt($ch, CURLOPT_USERAGENT, 'WordPress/Twilio-WP-Plugin-Updater');
+        curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
+        curl_setopt($ch, CURLOPT_TIMEOUT, 10);
+
+        // Add Gitea token if configured (for private repos)
+        $gitea_token = get_option('twp_gitea_token', '');
+        if (!empty($gitea_token)) {
+            curl_setopt($ch, CURLOPT_HTTPHEADER, array(
+                'Accept: application/json',
+                'Authorization: token ' . $gitea_token
+            ));
+        }
+
+        $response = curl_exec($ch);
+        $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
+        curl_close($ch);
+
+        if (!$response || $http_code !== 200) {
+            error_log("TWP Auto-Updater: Gitea API returned status $http_code");
+            return false;
+        }
+
+        $release = json_decode($response);
+
+        if (!$release || !isset($release->tag_name)) {
+            error_log('TWP Auto-Updater: Invalid release data from Gitea');
+            return false;
+        }
+
+        // Parse release information
+        $version = ltrim($release->tag_name, 'v'); // Remove 'v' prefix if present
+        $download_url = null;
+
+        // Find the zip asset
+        if (isset($release->assets) && is_array($release->assets)) {
+            foreach ($release->assets as $asset) {
+                if (strpos($asset->name, '.zip') !== false) {
+                    $download_url = $asset->browser_download_url;
+                    break;
+                }
+            }
+        }
+
+        // Fallback to zipball if no asset found
+        if (!$download_url) {
+            $download_url = $release->zipball_url;
+        }
+
+        // Format changelog
+        $changelog = !empty($release->body) ? $release->body : 'No changelog provided for this release.';
+
+        // Handle empty changelog
+        if (empty(trim($changelog))) {
+            $changelog = "Version " . $version . "\n\n" .
+                        "Released on " . date('F j, Y', strtotime($release->published_at)) . "\n\n" .
+                        "* Updated plugin files";
+        }
+
+        $update_info = (object) array(
+            'version' => $version,
+            'download_url' => $download_url,
+            'homepage' => $this->gitea_base_url . '/' . $this->gitea_repo,
+            'release_date' => $release->published_at,
+            'description' => $changelog,
+            'changelog' => $changelog
+        );
+
+        // Cache for 1 hour
+        set_transient($cache_key, $update_info, HOUR_IN_SECONDS);
+
+        return $update_info;
+    }
+
+    /**
+     * Manual update check (for admin page)
+     */
+    public function manual_check_for_updates() {
+        // Clear cache
+        delete_transient('twp_latest_release');
+        update_option('twp_last_update_check', 0);
+
+        // Force WordPress to check
+        wp_clean_plugins_cache();
+        delete_site_transient('update_plugins');
+
+        $update_info = $this->get_latest_release();
+
+        if (!$update_info) {
+            return array(
+                'success' => false,
+                'message' => 'Failed to check for updates. Please check your internet connection and Gitea repository settings.'
+            );
+        }
+
+        if (version_compare($this->current_version, $update_info->version, '<')) {
+            return array(
+                'success' => true,
+                'update_available' => true,
+                'current_version' => $this->current_version,
+                'latest_version' => $update_info->version,
+                'message' => "Update available: Version {$update_info->version}. Go to Plugins page to update."
+            );
+        } else {
+            return array(
+                'success' => true,
+                'update_available' => false,
+                'current_version' => $this->current_version,
+                'message' => 'You are running the latest version.'
+            );
+        }
+    }
+
+    /**
+     * Get current update status
+     */
+    public function get_update_status() {
+        $update_info = $this->get_latest_release();
+
+        return array(
+            'current_version' => $this->current_version,
+            'latest_version' => $update_info ? $update_info->version : 'Unknown',
+            'update_available' => $update_info && version_compare($this->current_version, $update_info->version, '<'),
+            'last_check' => get_option('twp_last_update_check', 0),
+            'auto_update_enabled' => get_option('twp_auto_update_enabled', '1') === '1'
+        );
+    }
+}

includes/class-twp-call-queue.php

@@ -618,6 +618,13 @@ class TWP_Call_Queue {
         require_once dirname(__FILE__) . '/class-twp-agent-groups.php';
         $members = TWP_Agent_Groups::get_group_members($queue->agent_group_id);
 
+        // Send FCM push notifications to agents' mobile devices
+        require_once dirname(__FILE__) . '/class-twp-fcm.php';
+        $fcm = new TWP_FCM();
+        foreach ($members as $member) {
+            $fcm->notify_incoming_call($member->user_id, $caller_number, $queue->queue_name, '');
+        }
+
         if (empty($members)) {
             error_log("TWP: No members found in agent group {$queue->agent_group_id} for queue {$queue_id}");
             return;

includes/class-twp-core.php

@@ -34,6 +34,13 @@ class TWP_Core {
         require_once TWP_PLUGIN_DIR . 'includes/class-twp-twilio-api.php';
         require_once TWP_PLUGIN_DIR . 'includes/class-twp-elevenlabs-api.php';
 
+        // Mobile app classes
+        require_once TWP_PLUGIN_DIR . 'includes/class-twp-mobile-auth.php';
+        require_once TWP_PLUGIN_DIR . 'includes/class-twp-mobile-api.php';
+        require_once TWP_PLUGIN_DIR . 'includes/class-twp-mobile-sse.php';
+        require_once TWP_PLUGIN_DIR . 'includes/class-twp-fcm.php';
+        require_once TWP_PLUGIN_DIR . 'includes/class-twp-auto-updater.php';
+
         // Feature classes
         require_once TWP_PLUGIN_DIR . 'includes/class-twp-scheduler.php';
         require_once TWP_PLUGIN_DIR . 'includes/class-twp-call-queue.php';
@@ -319,6 +326,20 @@ class TWP_Core {
         $webhooks = new TWP_Webhooks();
         $webhooks->register_endpoints();
 
+        // Initialize mobile app endpoints
+        $mobile_auth = new TWP_Mobile_Auth();
+        $mobile_auth->register_endpoints();
+
+        $mobile_api = new TWP_Mobile_API();
+        $mobile_api->register_endpoints();
+
+        $mobile_sse = new TWP_Mobile_SSE();
+        $mobile_sse->register_endpoints();
+
+        // Initialize auto-updater
+        $updater = new TWP_Auto_Updater();
+        $updater->init();
+        
         // Add custom cron schedules
         add_filter('cron_schedules', function($schedules) {
             $schedules['twp_every_minute'] = array(

includes/class-twp-fcm.php

@@ -0,0 +1,344 @@
+<?php
+/**
+ * Firebase Cloud Messaging (FCM) Integration — HTTP v2 API
+ *
+ * Handles push notifications to mobile devices via FCM using
+ * service account credentials and OAuth2 access tokens.
+ */
+class TWP_FCM {
+
+    private $project_id;
+    private $service_account;
+    private $fcm_url_template = 'https://fcm.googleapis.com/v1/projects/%s/messages:send';
+
+    /**
+     * Constructor
+     */
+    public function __construct() {
+        $this->project_id = get_option('twp_fcm_project_id', '');
+        $sa_json = get_option('twp_fcm_service_account_json', '');
+        if (!empty($sa_json)) {
+            $this->service_account = json_decode($sa_json, true);
+        }
+    }
+
+    /**
+     * Send push notification to user's devices
+     */
+    public function send_notification($user_id, $title, $body, $data = array(), $data_only = false) {
+        if (empty($this->project_id) || empty($this->service_account)) {
+            error_log('TWP FCM: Project ID or service account not configured');
+            return false;
+        }
+
+        // Get user's FCM tokens
+        $tokens = $this->get_user_tokens($user_id);
+
+        if (empty($tokens)) {
+            error_log("TWP FCM: No tokens found for user $user_id");
+            return false;
+        }
+
+        $success_count = 0;
+        $failed_tokens = array();
+
+        foreach ($tokens as $token) {
+            $result = $this->send_to_token($token, $title, $body, $data, $data_only);
+
+            if ($result['success']) {
+                $success_count++;
+            } else {
+                $failed_tokens[] = $token;
+
+                // If token is invalid, remove it from database
+                if ($result['error'] === 'invalid_token') {
+                    $this->remove_invalid_token($token);
+                }
+            }
+        }
+
+        error_log("TWP FCM: Sent notification to $success_count/" . count($tokens) . " devices for user $user_id");
+
+        return $success_count > 0;
+    }
+
+    /**
+     * Send notification to specific token via FCM HTTP v2 API
+     */
+    private function send_to_token($token, $title, $body, $data = array(), $data_only = false) {
+        $access_token = $this->get_access_token();
+        if (!$access_token) {
+            return array('success' => false, 'error' => 'auth_failed');
+        }
+
+        // FCM v2 requires all data values to be strings
+        $string_data = array();
+        foreach ($data as $key => $value) {
+            $string_data[$key] = is_string($value) ? $value : (string)$value;
+        }
+        $string_data['title'] = $title;
+        $string_data['body'] = $body;
+        $string_data['timestamp'] = (string)time();
+
+        // Build the v2 message payload
+        $message = array(
+            'token' => $token,
+            'data' => $string_data,
+            'android' => array(
+                'priority' => 'high',
+            ),
+        );
+
+        if (!$data_only) {
+            $message['notification'] = array(
+                'title' => $title,
+                'body' => $body,
+            );
+            $message['android']['notification'] = array(
+                'sound' => 'default',
+                'click_action' => 'FLUTTER_NOTIFICATION_CLICK',
+            );
+        }
+
+        $payload = array('message' => $message);
+
+        $url = sprintf($this->fcm_url_template, $this->project_id);
+
+        $headers = array(
+            'Authorization: Bearer ' . $access_token,
+            'Content-Type: application/json'
+        );
+
+        $ch = curl_init();
+        curl_setopt($ch, CURLOPT_URL, $url);
+        curl_setopt($ch, CURLOPT_POST, true);
+        curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
+        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);
+        curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($payload));
+
+        $response = curl_exec($ch);
+        $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
+        curl_close($ch);
+
+        if ($http_code !== 200) {
+            error_log("TWP FCM: Failed to send notification. HTTP $http_code: $response");
+
+            $response_data = json_decode($response, true);
+            $error_code = isset($response_data['error']['details'][0]['errorCode'])
+                ? $response_data['error']['details'][0]['errorCode'] : '';
+            $error_status = isset($response_data['error']['status'])
+                ? $response_data['error']['status'] : '';
+
+            if (in_array($error_code, array('UNREGISTERED', 'INVALID_ARGUMENT')) ||
+                $error_status === 'NOT_FOUND') {
+                return array('success' => false, 'error' => 'invalid_token');
+            }
+
+            return array('success' => false, 'error' => 'http_error');
+        }
+
+        return array('success' => true);
+    }
+
+    /**
+     * Get OAuth2 access token from service account credentials.
+     * Caches the token in a transient until near expiry.
+     */
+    private function get_access_token() {
+        $cached = get_transient('twp_fcm_access_token');
+        if ($cached) {
+            return $cached;
+        }
+
+        if (empty($this->service_account)) {
+            error_log('TWP FCM: Service account not configured');
+            return false;
+        }
+
+        $jwt = $this->create_jwt();
+        if (!$jwt) {
+            return false;
+        }
+
+        $ch = curl_init();
+        curl_setopt($ch, CURLOPT_URL, $this->service_account['token_uri']);
+        curl_setopt($ch, CURLOPT_POST, true);
+        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);
+        curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query(array(
+            'grant_type' => 'urn:ietf:params:oauth:grant-type:jwt-bearer',
+            'assertion' => $jwt,
+        )));
+
+        $response = curl_exec($ch);
+        $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
+        curl_close($ch);
+
+        if ($http_code !== 200) {
+            error_log("TWP FCM: Failed to get access token. HTTP $http_code: $response");
+            return false;
+        }
+
+        $token_data = json_decode($response, true);
+        $access_token = $token_data['access_token'];
+        $expires_in = isset($token_data['expires_in']) ? (int)$token_data['expires_in'] : 3600;
+
+        // Cache token for 5 minutes less than actual expiry
+        set_transient('twp_fcm_access_token', $access_token, max(60, $expires_in - 300));
+
+        return $access_token;
+    }
+
+    /**
+     * Create a signed JWT for the service account OAuth2 flow
+     */
+    private function create_jwt() {
+        $sa = $this->service_account;
+
+        if (empty($sa['client_email']) || empty($sa['private_key']) || empty($sa['token_uri'])) {
+            error_log('TWP FCM: Service account JSON missing required fields');
+            return false;
+        }
+
+        $now = time();
+        $header = array('alg' => 'RS256', 'typ' => 'JWT');
+        $claims = array(
+            'iss' => $sa['client_email'],
+            'scope' => 'https://www.googleapis.com/auth/firebase.messaging',
+            'aud' => $sa['token_uri'],
+            'iat' => $now,
+            'exp' => $now + 3600,
+        );
+
+        $segments = array(
+            $this->base64url_encode(json_encode($header)),
+            $this->base64url_encode(json_encode($claims)),
+        );
+
+        $signing_input = implode('.', $segments);
+
+        $private_key = openssl_pkey_get_private($sa['private_key']);
+        if (!$private_key) {
+            error_log('TWP FCM: Failed to parse service account private key');
+            return false;
+        }
+
+        $signature = '';
+        if (!openssl_sign($signing_input, $signature, $private_key, OPENSSL_ALGO_SHA256)) {
+            error_log('TWP FCM: Failed to sign JWT');
+            return false;
+        }
+
+        $segments[] = $this->base64url_encode($signature);
+
+        return implode('.', $segments);
+    }
+
+    /**
+     * Base64url encode (RFC 4648)
+     */
+    private function base64url_encode($data) {
+        return rtrim(strtr(base64_encode($data), '+/', '-_'), '=');
+    }
+
+    /**
+     * Get all active FCM tokens for a user
+     */
+    private function get_user_tokens($user_id) {
+        global $wpdb;
+        $table = $wpdb->prefix . 'twp_mobile_sessions';
+
+        return $wpdb->get_col($wpdb->prepare(
+            "SELECT fcm_token FROM $table
+             WHERE user_id = %d
+             AND is_active = 1
+             AND fcm_token IS NOT NULL
+             AND fcm_token != ''
+             AND expires_at > NOW()",
+            $user_id
+        ));
+    }
+
+    /**
+     * Remove invalid FCM token from database
+     */
+    private function remove_invalid_token($token) {
+        global $wpdb;
+        $table = $wpdb->prefix . 'twp_mobile_sessions';
+
+        $wpdb->update(
+            $table,
+            array('fcm_token' => null),
+            array('fcm_token' => $token),
+            array('%s'),
+            array('%s')
+        );
+
+        error_log("TWP FCM: Removed invalid token from database");
+    }
+
+    /**
+     * Send incoming call notification
+     */
+    public function notify_incoming_call($user_id, $from_number, $queue_name, $call_sid) {
+        $title = 'Incoming Call';
+        $body = "Call from $from_number in $queue_name queue";
+
+        $data = array(
+            'type' => 'incoming_call',
+            'call_sid' => $call_sid,
+            'from_number' => $from_number,
+            'queue_name' => $queue_name
+        );
+
+        return $this->send_notification($user_id, $title, $body, $data, true);
+    }
+
+    /**
+     * Send queue timeout notification
+     */
+    public function notify_queue_timeout($user_id, $queue_name, $waiting_count) {
+        $title = 'Queue Alert';
+        $body = "$queue_name has $waiting_count waiting call" . ($waiting_count > 1 ? 's' : '');
+
+        $data = array(
+            'type' => 'queue_timeout',
+            'queue_name' => $queue_name,
+            'waiting_count' => $waiting_count
+        );
+
+        return $this->send_notification($user_id, $title, $body, $data);
+    }
+
+    /**
+     * Send agent status change notification
+     */
+    public function notify_status_change($user_id, $old_status, $new_status) {
+        $title = 'Status Changed';
+        $body = "Your status changed from $old_status to $new_status";
+
+        $data = array(
+            'type' => 'status_change',
+            'old_status' => $old_status,
+            'new_status' => $new_status
+        );
+
+        return $this->send_notification($user_id, $title, $body, $data);
+    }
+
+    /**
+     * Test notification (for settings page)
+     */
+    public function send_test_notification($user_id) {
+        $title = 'Test Notification';
+        $body = 'This is a test notification from Twilio WordPress Plugin';
+
+        $data = array(
+            'type' => 'test',
+            'test' => 'true'
+        );
+
+        return $this->send_notification($user_id, $title, $body, $data);
+    }
+}

includes/class-twp-mobile-api.php

@@ -0,0 +1,755 @@
+<?php
+/**
+ * Mobile App REST API Endpoints
+ *
+ * Provides REST API endpoints for mobile app functionality
+ */
+class TWP_Mobile_API {
+
+    private $auth;
+
+    /**
+     * Constructor
+     */
+    public function __construct() {
+        // Initialize auth handler
+        require_once plugin_dir_path(__FILE__) . 'class-twp-mobile-auth.php';
+        $this->auth = new TWP_Mobile_Auth();
+    }
+
+    /**
+     * Register REST API endpoints
+     */
+    public function register_endpoints() {
+        add_action('rest_api_init', function() {
+            // Agent status endpoints
+            register_rest_route('twilio-mobile/v1', '/agent/status', array(
+                'methods' => 'GET',
+                'callback' => array($this, 'get_agent_status'),
+                'permission_callback' => array($this->auth, 'verify_token')
+            ));
+
+            register_rest_route('twilio-mobile/v1', '/agent/status', array(
+                'methods' => 'POST',
+                'callback' => array($this, 'update_agent_status'),
+                'permission_callback' => array($this->auth, 'verify_token')
+            ));
+
+            // Queue state endpoint
+            register_rest_route('twilio-mobile/v1', '/queues/state', array(
+                'methods' => 'GET',
+                'callback' => array($this, 'get_queue_state'),
+                'permission_callback' => array($this->auth, 'verify_token')
+            ));
+
+            // Queue calls (specific queue)
+            register_rest_route('twilio-mobile/v1', '/queues/(?P<id>\d+)/calls', array(
+                'methods' => 'GET',
+                'callback' => array($this, 'get_queue_calls'),
+                'permission_callback' => array($this->auth, 'verify_token')
+            ));
+
+            // Call control endpoints
+            register_rest_route('twilio-mobile/v1', '/calls/(?P<call_sid>[^/]+)/accept', array(
+                'methods' => 'POST',
+                'callback' => array($this, 'accept_call'),
+                'permission_callback' => array($this->auth, 'verify_token')
+            ));
+
+            register_rest_route('twilio-mobile/v1', '/calls/(?P<call_sid>[^/]+)/reject', array(
+                'methods' => 'POST',
+                'callback' => array($this, 'reject_call'),
+                'permission_callback' => array($this->auth, 'verify_token')
+            ));
+
+            register_rest_route('twilio-mobile/v1', '/calls/(?P<call_sid>[^/]+)/hold', array(
+                'methods' => 'POST',
+                'callback' => array($this, 'hold_call'),
+                'permission_callback' => array($this->auth, 'verify_token')
+            ));
+
+            register_rest_route('twilio-mobile/v1', '/calls/(?P<call_sid>[^/]+)/unhold', array(
+                'methods' => 'POST',
+                'callback' => array($this, 'unhold_call'),
+                'permission_callback' => array($this->auth, 'verify_token')
+            ));
+
+            register_rest_route('twilio-mobile/v1', '/calls/(?P<call_sid>[^/]+)/transfer', array(
+                'methods' => 'POST',
+                'callback' => array($this, 'transfer_call'),
+                'permission_callback' => array($this->auth, 'verify_token')
+            ));
+
+            // FCM token registration
+            register_rest_route('twilio-mobile/v1', '/fcm/register', array(
+                'methods' => 'POST',
+                'callback' => array($this, 'register_fcm_token'),
+                'permission_callback' => array($this->auth, 'verify_token')
+            ));
+
+            // Agent phone number
+            register_rest_route('twilio-mobile/v1', '/agent/phone', array(
+                'methods' => 'GET',
+                'callback' => array($this, 'get_agent_phone'),
+                'permission_callback' => array($this->auth, 'verify_token')
+            ));
+
+            register_rest_route('twilio-mobile/v1', '/agent/phone', array(
+                'methods' => 'POST',
+                'callback' => array($this, 'update_agent_phone'),
+                'permission_callback' => array($this->auth, 'verify_token')
+            ));
+
+            // Voice token for VoIP
+            register_rest_route('twilio-mobile/v1', '/voice/token', array(
+                'methods' => 'GET',
+                'callback' => array($this, 'get_voice_token'),
+                'permission_callback' => array($this->auth, 'verify_token')
+            ));
+        });
+    }
+
+    /**
+     * Get agent status
+     */
+    public function get_agent_status($request) {
+        $user_id = $this->auth->get_current_user_id();
+
+        global $wpdb;
+        $table = $wpdb->prefix . 'twp_agent_status';
+
+        $status = $wpdb->get_row($wpdb->prepare(
+            "SELECT status, is_logged_in, current_call_sid, last_activity, available_for_queues FROM $table WHERE user_id = %d",
+            $user_id
+        ));
+
+        if (!$status) {
+            // Create default status
+            $wpdb->insert(
+                $table,
+                array('user_id' => $user_id, 'status' => 'offline', 'is_logged_in' => 0),
+                array('%d', '%s', '%d')
+            );
+
+            $status = (object) array(
+                'status' => 'offline',
+                'is_logged_in' => 0,
+                'current_call_sid' => null,
+                'last_activity' => current_time('mysql'),
+                'available_for_queues' => 1
+            );
+        }
+
+        return new WP_REST_Response(array(
+            'success' => true,
+            'status' => $status->status,
+            'is_logged_in' => (bool)$status->is_logged_in,
+            'current_call_sid' => $status->current_call_sid,
+            'last_activity' => $status->last_activity,
+            'available_for_queues' => (bool)$status->available_for_queues
+        ), 200);
+    }
+
+    /**
+     * Update agent status
+     */
+    public function update_agent_status($request) {
+        $user_id = $this->auth->get_current_user_id();
+        $new_status = $request->get_param('status');
+        $is_logged_in = $request->get_param('is_logged_in');
+
+        if (!in_array($new_status, array('available', 'busy', 'offline'))) {
+            return new WP_Error('invalid_status', 'Status must be available, busy, or offline', array('status' => 400));
+        }
+
+        global $wpdb;
+        $table = $wpdb->prefix . 'twp_agent_status';
+
+        // Check if status exists
+        $exists = $wpdb->get_var($wpdb->prepare(
+            "SELECT COUNT(*) FROM $table WHERE user_id = %d",
+            $user_id
+        ));
+
+        $data = array(
+            'status' => $new_status,
+            'last_activity' => current_time('mysql')
+        );
+
+        if ($is_logged_in !== null) {
+            $data['is_logged_in'] = $is_logged_in ? 1 : 0;
+            if ($is_logged_in) {
+                $data['logged_in_at'] = current_time('mysql');
+            }
+        }
+
+        if ($exists) {
+            $wpdb->update(
+                $table,
+                $data,
+                array('user_id' => $user_id),
+                array('%s', '%s'),
+                array('%d')
+            );
+        } else {
+            $data['user_id'] = $user_id;
+            $wpdb->insert($table, $data);
+        }
+
+        return new WP_REST_Response(array(
+            'success' => true,
+            'message' => 'Status updated successfully'
+        ), 200);
+    }
+
+    /**
+     * Get queue state (all queues user has access to)
+     */
+    public function get_queue_state($request) {
+        $user_id = $this->auth->get_current_user_id();
+
+        global $wpdb;
+        $queues_table = $wpdb->prefix . 'twp_call_queues';
+        $calls_table = $wpdb->prefix . 'twp_queued_calls';
+        $groups_table = $wpdb->prefix . 'twp_group_members';
+
+        // Auto-create personal queues if they don't exist
+        $extensions_table = $wpdb->prefix . 'twp_user_extensions';
+        $existing_extension = $wpdb->get_row($wpdb->prepare(
+            "SELECT extension FROM $extensions_table WHERE user_id = %d",
+            $user_id
+        ));
+
+        if (!$existing_extension) {
+            TWP_User_Queue_Manager::create_user_queues($user_id);
+        }
+
+        // Get queues where user is a member of the assigned agent group OR personal/hold queues
+        $queues = $wpdb->get_results($wpdb->prepare("
+            SELECT DISTINCT
+                q.id,
+                q.queue_name,
+                q.queue_type,
+                q.extension,
+                COUNT(c.id) as waiting_count
+            FROM $queues_table q
+            LEFT JOIN $groups_table gm ON gm.group_id = q.agent_group_id
+            LEFT JOIN $calls_table c ON q.id = c.queue_id AND c.status = 'waiting'
+            WHERE (gm.user_id = %d AND gm.is_active = 1)
+               OR (q.user_id = %d AND q.queue_type IN ('personal', 'hold'))
+            GROUP BY q.id
+            ORDER BY
+                CASE
+                    WHEN q.queue_type = 'personal' THEN 1
+                    WHEN q.queue_type = 'hold' THEN 2
+                    ELSE 3
+                END,
+                q.queue_name ASC
+        ", $user_id, $user_id));
+
+        $result = array();
+        foreach ($queues as $queue) {
+            $result[] = array(
+                'id' => (int)$queue->id,
+                'name' => $queue->queue_name,
+                'type' => $queue->queue_type,
+                'extension' => $queue->extension,
+                'waiting_count' => (int)$queue->waiting_count
+            );
+        }
+
+        return new WP_REST_Response(array(
+            'success' => true,
+            'queues' => $result
+        ), 200);
+    }
+
+    /**
+     * Get calls in a specific queue
+     */
+    public function get_queue_calls($request) {
+        $user_id = $this->auth->get_current_user_id();
+        $queue_id = (int)$request['id'];
+
+        // Verify user has access to this queue
+        if (!$this->user_has_queue_access($user_id, $queue_id)) {
+            return new WP_Error('forbidden', 'You do not have access to this queue', array('status' => 403));
+        }
+
+        global $wpdb;
+        $table = $wpdb->prefix . 'twp_queued_calls';
+
+        $calls = $wpdb->get_results($wpdb->prepare(
+            "SELECT call_sid, from_number, to_number, position, status, joined_at, enqueued_at
+             FROM $table
+             WHERE queue_id = %d AND status = 'waiting'
+             ORDER BY position ASC",
+            $queue_id
+        ));
+
+        $result = array();
+        foreach ($calls as $call) {
+            $result[] = array(
+                'call_sid' => $call->call_sid,
+                'from_number' => $call->from_number,
+                'to_number' => $call->to_number,
+                'position' => (int)$call->position,
+                'status' => $call->status,
+                'wait_time' => $this->calculate_wait_time($call->enqueued_at ?: $call->joined_at)
+            );
+        }
+
+        return new WP_REST_Response(array(
+            'success' => true,
+            'calls' => $result
+        ), 200);
+    }
+
+    /**
+     * Accept a call (dequeue and connect to agent)
+     */
+    public function accept_call($request) {
+        $user_id = $this->auth->get_current_user_id();
+        $call_sid = $request['call_sid'];
+
+        // Get agent phone number
+        $agent_number = get_user_meta($user_id, 'twp_agent_phone', true);
+
+        if (empty($agent_number)) {
+            return new WP_Error('no_phone', 'No phone number configured for agent', array('status' => 400));
+        }
+
+        // Initialize Twilio API
+        require_once plugin_dir_path(dirname(__FILE__)) . 'includes/class-twp-twilio-api.php';
+        $twilio = new TWP_Twilio_API();
+
+        // Get call info from queue
+        global $wpdb;
+        $calls_table = $wpdb->prefix . 'twp_queued_calls';
+
+        $call = $wpdb->get_row($wpdb->prepare(
+            "SELECT * FROM $calls_table WHERE call_sid = %s AND status = 'waiting'",
+            $call_sid
+        ));
+
+        if (!$call) {
+            return new WP_Error('call_not_found', 'Call not found or no longer waiting', array('status' => 404));
+        }
+
+        // Verify user has access to this queue
+        if (!$this->user_has_queue_access($user_id, $call->queue_id)) {
+            return new WP_Error('forbidden', 'You do not have access to this queue', array('status' => 403));
+        }
+
+        try {
+            // Connect agent to call
+            $agent_call = $twilio->create_call(
+                $agent_number,
+                $call->to_number,
+                array(
+                    'url' => site_url('/wp-json/twilio-webhook/v1/connect-agent'),
+                    'statusCallback' => site_url('/wp-json/twilio-webhook/v1/agent-call-status'),
+                    'statusCallbackEvent' => array('completed', 'no-answer', 'busy', 'failed'),
+                    'timeout' => 30
+                )
+            );
+
+            // Update call record
+            $wpdb->update(
+                $calls_table,
+                array(
+                    'status' => 'connecting',
+                    'agent_phone' => $agent_number,
+                    'agent_call_sid' => $agent_call->sid
+                ),
+                array('call_sid' => $call_sid),
+                array('%s', '%s', '%s'),
+                array('%s')
+            );
+
+            // Update agent status
+            $status_table = $wpdb->prefix . 'twp_agent_status';
+            $wpdb->update(
+                $status_table,
+                array('status' => 'busy', 'current_call_sid' => $call_sid),
+                array('user_id' => $user_id),
+                array('%s', '%s'),
+                array('%d')
+            );
+
+            return new WP_REST_Response(array(
+                'success' => true,
+                'message' => 'Call accepted, connecting to agent',
+                'agent_call_sid' => $agent_call->sid
+            ), 200);
+
+        } catch (Exception $e) {
+            return new WP_Error('twilio_error', $e->getMessage(), array('status' => 500));
+        }
+    }
+
+    /**
+     * Reject a call (send to voicemail)
+     */
+    public function reject_call($request) {
+        $user_id = $this->auth->get_current_user_id();
+        $call_sid = $request['call_sid'];
+
+        global $wpdb;
+        $calls_table = $wpdb->prefix . 'twp_queued_calls';
+
+        $call = $wpdb->get_row($wpdb->prepare(
+            "SELECT * FROM $calls_table WHERE call_sid = %s AND status = 'waiting'",
+            $call_sid
+        ));
+
+        if (!$call) {
+            return new WP_Error('call_not_found', 'Call not found or no longer waiting', array('status' => 404));
+        }
+
+        // Verify user has access to this queue
+        if (!$this->user_has_queue_access($user_id, $call->queue_id)) {
+            return new WP_Error('forbidden', 'You do not have access to this queue', array('status' => 403));
+        }
+
+        try {
+            // Initialize Twilio API
+            require_once plugin_dir_path(dirname(__FILE__)) . 'includes/class-twp-twilio-api.php';
+            $twilio = new TWP_Twilio_API();
+
+            // Redirect call to voicemail
+            $twiml = new \Twilio\TwiML\VoiceResponse();
+            $twiml->say('The agent is unavailable. Please leave a message after the tone.');
+            $twiml->record(array(
+                'action' => site_url('/wp-json/twilio-webhook/v1/voicemail-complete'),
+                'maxLength' => 120,
+                'transcribe' => true
+            ));
+            $twiml->say('We did not receive a recording. Goodbye.');
+
+            $twilio->update_call($call_sid, array('twiml' => $twiml->asXML()));
+
+            // Update call status
+            $wpdb->update(
+                $calls_table,
+                array('status' => 'voicemail', 'ended_at' => current_time('mysql')),
+                array('call_sid' => $call_sid),
+                array('%s', '%s'),
+                array('%s')
+            );
+
+            return new WP_REST_Response(array(
+                'success' => true,
+                'message' => 'Call sent to voicemail'
+            ), 200);
+
+        } catch (Exception $e) {
+            return new WP_Error('twilio_error', $e->getMessage(), array('status' => 500));
+        }
+    }
+
+    /**
+     * Hold a call
+     */
+    public function hold_call($request) {
+        $user_id = $this->auth->get_current_user_id();
+        $call_sid = $request['call_sid'];
+
+        try {
+            require_once plugin_dir_path(dirname(__FILE__)) . 'includes/class-twp-admin.php';
+            require_once plugin_dir_path(dirname(__FILE__)) . 'includes/class-twp-twilio-api.php';
+
+            $admin = new TWP_Admin('twilio-wp-plugin', TWP_VERSION);
+            $twilio = new TWP_Twilio_API();
+
+            // Find customer call leg
+            $customer_call_sid = $admin->find_customer_call_leg($call_sid, $twilio);
+
+            if (!$customer_call_sid) {
+                return new WP_Error('call_not_found', 'Could not find customer call leg', array('status' => 404));
+            }
+
+            // Get user's hold queue
+            global $wpdb;
+            $ext_table = $wpdb->prefix . 'twp_user_extensions';
+            $queues_table = $wpdb->prefix . 'twp_call_queues';
+
+            $extension = $wpdb->get_row($wpdb->prepare(
+                "SELECT hold_queue_id FROM $ext_table WHERE user_id = %d",
+                $user_id
+            ));
+
+            if (!$extension || !$extension->hold_queue_id) {
+                return new WP_Error('no_hold_queue', 'No hold queue configured', array('status' => 400));
+            }
+
+            $hold_queue = $wpdb->get_row($wpdb->prepare(
+                "SELECT queue_name, wait_music_url FROM $queues_table WHERE id = %d",
+                $extension->hold_queue_id
+            ));
+
+            // Put call on hold
+            $twiml = new \Twilio\TwiML\VoiceResponse();
+            $twiml->say('Please hold while we transfer your call.');
+            $enqueue = $twiml->enqueue($hold_queue->queue_name, array(
+                'waitUrl' => $hold_queue->wait_music_url ?: site_url('/wp-json/twilio-webhook/v1/queue-wait')
+            ));
+
+            $twilio->update_call($customer_call_sid, array('twiml' => $twiml->asXML()));
+
+            return new WP_REST_Response(array(
+                'success' => true,
+                'message' => 'Call placed on hold'
+            ), 200);
+
+        } catch (Exception $e) {
+            return new WP_Error('hold_error', $e->getMessage(), array('status' => 500));
+        }
+    }
+
+    /**
+     * Unhold a call (resume from hold queue)
+     */
+    public function unhold_call($request) {
+        $user_id = $this->auth->get_current_user_id();
+        $call_sid = $request['call_sid'];
+
+        try {
+            require_once plugin_dir_path(dirname(__FILE__)) . 'includes/class-twp-admin.php';
+            require_once plugin_dir_path(dirname(__FILE__)) . 'includes/class-twp-twilio-api.php';
+
+            $admin = new TWP_Admin('twilio-wp-plugin', TWP_VERSION);
+            $twilio = new TWP_Twilio_API();
+
+            // Find customer call leg
+            $customer_call_sid = $admin->find_customer_call_leg($call_sid, $twilio);
+
+            if (!$customer_call_sid) {
+                return new WP_Error('call_not_found', 'Could not find customer call leg', array('status' => 404));
+            }
+
+            // Build identity for this agent
+            $user = get_userdata($user_id);
+            $clean_name = preg_replace('/[^a-zA-Z0-9]/', '', $user->user_login);
+            if (empty($clean_name)) {
+                $clean_name = 'user';
+            }
+            $identity = 'agent' . $user_id . $clean_name;
+
+            // Redirect customer back to agent's client
+            $twiml = new \Twilio\TwiML\VoiceResponse();
+            $dial = $twiml->dial();
+            $dial->client($identity);
+
+            $twilio->update_call($customer_call_sid, array('twiml' => $twiml->asXML()));
+
+            return new WP_REST_Response(array(
+                'success' => true,
+                'message' => 'Call resumed from hold'
+            ), 200);
+
+        } catch (Exception $e) {
+            return new WP_Error('unhold_error', $e->getMessage(), array('status' => 500));
+        }
+    }
+
+    /**
+     * Transfer a call to another extension/queue
+     */
+    public function transfer_call($request) {
+        $user_id = $this->auth->get_current_user_id();
+        $call_sid = $request['call_sid'];
+        $target = $request->get_param('target'); // Extension number or queue ID
+
+        if (empty($target)) {
+            return new WP_Error('missing_target', 'Transfer target is required', array('status' => 400));
+        }
+
+        try {
+            require_once plugin_dir_path(dirname(__FILE__)) . 'includes/class-twp-admin.php';
+            require_once plugin_dir_path(dirname(__FILE__)) . 'includes/class-twp-twilio-api.php';
+
+            $admin = new TWP_Admin('twilio-wp-plugin', TWP_VERSION);
+            $twilio = new TWP_Twilio_API();
+
+            // Find customer call leg
+            $customer_call_sid = $admin->find_customer_call_leg($call_sid, $twilio);
+
+            if (!$customer_call_sid) {
+                return new WP_Error('call_not_found', 'Could not find customer call leg', array('status' => 404));
+            }
+
+            // Look up target (extension or queue)
+            global $wpdb;
+            $ext_table = $wpdb->prefix . 'twp_user_extensions';
+            $queues_table = $wpdb->prefix . 'twp_call_queues';
+
+            // Try as extension first
+            $target_queue = $wpdb->get_row($wpdb->prepare(
+                "SELECT q.* FROM $queues_table q
+                 JOIN $ext_table e ON q.id = e.personal_queue_id
+                 WHERE e.extension = %s",
+                $target
+            ));
+
+            // If not extension, try as queue ID
+            if (!$target_queue && is_numeric($target)) {
+                $target_queue = $wpdb->get_row($wpdb->prepare(
+                    "SELECT * FROM $queues_table WHERE id = %d",
+                    $target
+                ));
+            }
+
+            if (!$target_queue) {
+                return new WP_Error('invalid_target', 'Transfer target not found', array('status' => 404));
+            }
+
+            // Transfer to queue
+            $twiml = new \Twilio\TwiML\VoiceResponse();
+            $twiml->say('Transferring your call.');
+            $twiml->enqueue($target_queue->queue_name, array(
+                'waitUrl' => $target_queue->wait_music_url ?: site_url('/wp-json/twilio-webhook/v1/queue-wait')
+            ));
+
+            $twilio->update_call($customer_call_sid, array('twiml' => $twiml->asXML()));
+
+            return new WP_REST_Response(array(
+                'success' => true,
+                'message' => 'Call transferred successfully'
+            ), 200);
+
+        } catch (Exception $e) {
+            return new WP_Error('transfer_error', $e->getMessage(), array('status' => 500));
+        }
+    }
+
+    /**
+     * Register FCM token for push notifications
+     */
+    public function register_fcm_token($request) {
+        $user_id = $this->auth->get_current_user_id();
+        $fcm_token = $request->get_param('fcm_token');
+        $refresh_token = $request->get_param('refresh_token');
+
+        if (empty($fcm_token)) {
+            return new WP_Error('missing_token', 'FCM token is required', array('status' => 400));
+        }
+
+        $this->auth->update_fcm_token($user_id, $refresh_token, $fcm_token);
+
+        return new WP_REST_Response(array(
+            'success' => true,
+            'message' => 'FCM token registered successfully'
+        ), 200);
+    }
+
+    /**
+     * Get agent phone number
+     */
+    public function get_agent_phone($request) {
+        $user_id = $this->auth->get_current_user_id();
+        $agent_number = get_user_meta($user_id, 'twp_agent_phone', true);
+
+        return new WP_REST_Response(array(
+            'success' => true,
+            'phone_number' => $agent_number ?: null
+        ), 200);
+    }
+
+    /**
+     * Update agent phone number
+     */
+    public function update_agent_phone($request) {
+        $user_id = $this->auth->get_current_user_id();
+        $phone_number = $request->get_param('phone_number');
+
+        if (empty($phone_number)) {
+            return new WP_Error('missing_phone', 'Phone number is required', array('status' => 400));
+        }
+
+        // Validate E.164 format
+        if (!preg_match('/^\+[1-9]\d{1,14}$/', $phone_number)) {
+            return new WP_Error('invalid_phone', 'Phone number must be in E.164 format (+1XXXXXXXXXX)', array('status' => 400));
+        }
+
+        update_user_meta($user_id, 'twp_agent_phone', $phone_number);
+
+        return new WP_REST_Response(array(
+            'success' => true,
+            'message' => 'Phone number updated successfully'
+        ), 200);
+    }
+
+    /**
+     * Get Voice access token for VoIP
+     */
+    public function get_voice_token($request) {
+        $user_id = $this->auth->get_current_user_id();
+        $user = get_userdata($user_id);
+        $clean_name = preg_replace('/[^a-zA-Z0-9]/', '', $user->user_login);
+        if (empty($clean_name)) {
+            $clean_name = 'user';
+        }
+        $identity = 'agent' . $user_id . $clean_name;
+
+        try {
+            require_once plugin_dir_path(dirname(__FILE__)) . 'includes/class-twp-twilio-api.php';
+            $twilio = new TWP_Twilio_API();
+            $result = $twilio->generate_capability_token($identity);
+
+            if (!$result['success']) {
+                return new WP_Error('token_error', $result['error'], array('status' => 500));
+            }
+
+            return new WP_REST_Response(array(
+                'token' => $result['data']['token'],
+                'identity' => $result['data']['client_name'],
+                'expires_in' => $result['data']['expires_in']
+            ), 200);
+
+        } catch (Exception $e) {
+            return new WP_Error('token_error', $e->getMessage(), array('status' => 500));
+        }
+    }
+
+    /**
+     * Check if user has access to a queue
+     */
+    private function user_has_queue_access($user_id, $queue_id) {
+        global $wpdb;
+        $queues_table = $wpdb->prefix . 'twp_call_queues';
+        $assignments_table = $wpdb->prefix . 'twp_queue_assignments';
+
+        // Check if it's user's personal queue
+        $is_personal = $wpdb->get_var($wpdb->prepare(
+            "SELECT COUNT(*) FROM $queues_table WHERE id = %d AND user_id = %d",
+            $queue_id, $user_id
+        ));
+
+        if ($is_personal) {
+            return true;
+        }
+
+        // Check if user is assigned to this queue
+        $is_assigned = $wpdb->get_var($wpdb->prepare(
+            "SELECT COUNT(*) FROM $assignments_table WHERE queue_id = %d AND user_id = %d",
+            $queue_id, $user_id
+        ));
+
+        return (bool)$is_assigned;
+    }
+
+    /**
+     * Calculate wait time in seconds
+     */
+    private function calculate_wait_time($start_time) {
+        if (!$start_time) {
+            return 0;
+        }
+
+        $start = strtotime($start_time);
+        $now = current_time('timestamp');
+
+        return max(0, $now - $start);
+    }
+}

includes/class-twp-mobile-auth.php

@@ -0,0 +1,457 @@
+<?php
+/**
+ * Mobile App JWT Authentication Handler
+ *
+ * Handles JWT token generation, validation, and refresh for Android/iOS apps
+ */
+class TWP_Mobile_Auth {
+
+    private $secret_key;
+    private $token_expiry = 86400; // 24 hours in seconds
+    private $refresh_expiry = 2592000; // 30 days in seconds
+
+    /**
+     * Constructor
+     */
+    public function __construct() {
+        $this->secret_key = $this->get_secret_key();
+    }
+
+    /**
+     * Get or generate JWT secret key
+     */
+    private function get_secret_key() {
+        $key = get_option('twp_mobile_jwt_secret');
+
+        if (empty($key)) {
+            // Generate a secure random key
+            $key = bin2hex(random_bytes(32));
+            update_option('twp_mobile_jwt_secret', $key);
+        }
+
+        return $key;
+    }
+
+    /**
+     * Register REST API endpoints
+     */
+    public function register_endpoints() {
+        add_action('rest_api_init', function() {
+            // Login endpoint
+            register_rest_route('twilio-mobile/v1', '/auth/login', array(
+                'methods' => 'POST',
+                'callback' => array($this, 'handle_login'),
+                'permission_callback' => '__return_true'
+            ));
+
+            // Refresh token endpoint
+            register_rest_route('twilio-mobile/v1', '/auth/refresh', array(
+                'methods' => 'POST',
+                'callback' => array($this, 'handle_refresh'),
+                'permission_callback' => '__return_true'
+            ));
+
+            // Logout endpoint
+            register_rest_route('twilio-mobile/v1', '/auth/logout', array(
+                'methods' => 'POST',
+                'callback' => array($this, 'handle_logout'),
+                'permission_callback' => array($this, 'verify_token')
+            ));
+
+            // Validate token endpoint (for debugging)
+            register_rest_route('twilio-mobile/v1', '/auth/validate', array(
+                'methods' => 'GET',
+                'callback' => array($this, 'handle_validate'),
+                'permission_callback' => array($this, 'verify_token')
+            ));
+        });
+    }
+
+    /**
+     * Handle login request
+     */
+    public function handle_login($request) {
+        $username = $request->get_param('username');
+        $password = $request->get_param('password');
+        $fcm_token = $request->get_param('fcm_token'); // Optional
+        $device_info = $request->get_param('device_info'); // Optional
+
+        if (empty($username) || empty($password)) {
+            return new WP_Error('missing_credentials', 'Username and password are required', array('status' => 400));
+        }
+
+        // Authenticate user
+        $user = wp_authenticate($username, $password);
+
+        if (is_wp_error($user)) {
+            return new WP_Error('invalid_credentials', 'Invalid username or password', array('status' => 401));
+        }
+
+        // Check if user has phone agent capabilities
+        if (!user_can($user->ID, 'twp_access_browser_phone') && !user_can($user->ID, 'manage_options')) {
+            return new WP_Error('insufficient_permissions', 'User does not have phone agent access', array('status' => 403));
+        }
+
+        // Generate tokens
+        $access_token = $this->generate_token($user->ID, 'access');
+        $refresh_token = $this->generate_token($user->ID, 'refresh');
+
+        // Store session in database
+        $this->store_session($user->ID, $refresh_token, $fcm_token, $device_info);
+
+        // Get user data
+        $user_data = $this->get_user_data($user->ID);
+
+        return new WP_REST_Response(array(
+            'success' => true,
+            'access_token' => $access_token,
+            'refresh_token' => $refresh_token,
+            'expires_in' => $this->token_expiry,
+            'user' => $user_data
+        ), 200);
+    }
+
+    /**
+     * Handle token refresh request
+     */
+    public function handle_refresh($request) {
+        $refresh_token = $request->get_param('refresh_token');
+
+        if (empty($refresh_token)) {
+            return new WP_Error('missing_token', 'Refresh token is required', array('status' => 400));
+        }
+
+        // Verify refresh token
+        $payload = $this->decode_token($refresh_token);
+
+        if (!$payload || $payload->type !== 'refresh') {
+            return new WP_Error('invalid_token', 'Invalid refresh token', array('status' => 401));
+        }
+
+        // Check if session exists and is valid
+        global $wpdb;
+        $table = $wpdb->prefix . 'twp_mobile_sessions';
+
+        $session = $wpdb->get_row($wpdb->prepare(
+            "SELECT * FROM $table WHERE user_id = %d AND refresh_token = %s AND is_active = 1 AND expires_at > NOW()",
+            $payload->user_id,
+            $refresh_token
+        ));
+
+        if (!$session) {
+            return new WP_Error('invalid_session', 'Session expired or invalid', array('status' => 401));
+        }
+
+        // Generate new access token
+        $access_token = $this->generate_token($payload->user_id, 'access');
+
+        // Update last_used timestamp
+        $wpdb->update(
+            $table,
+            array('last_used' => current_time('mysql')),
+            array('id' => $session->id),
+            array('%s'),
+            array('%d')
+        );
+
+        return new WP_REST_Response(array(
+            'success' => true,
+            'access_token' => $access_token,
+            'expires_in' => $this->token_expiry
+        ), 200);
+    }
+
+    /**
+     * Handle logout request
+     */
+    public function handle_logout($request) {
+        $user_id = $this->get_current_user_id();
+
+        if (!$user_id) {
+            return new WP_Error('unauthorized', 'Invalid token', array('status' => 401));
+        }
+
+        // Get refresh token from request
+        $refresh_token = $request->get_param('refresh_token');
+
+        global $wpdb;
+        $table = $wpdb->prefix . 'twp_mobile_sessions';
+
+        if ($refresh_token) {
+            // Invalidate specific session
+            $wpdb->update(
+                $table,
+                array('is_active' => 0),
+                array('user_id' => $user_id, 'refresh_token' => $refresh_token),
+                array('%d'),
+                array('%d', '%s')
+            );
+        } else {
+            // Invalidate all sessions for this user
+            $wpdb->update(
+                $table,
+                array('is_active' => 0),
+                array('user_id' => $user_id),
+                array('%d'),
+                array('%d')
+            );
+        }
+
+        return new WP_REST_Response(array(
+            'success' => true,
+            'message' => 'Logged out successfully'
+        ), 200);
+    }
+
+    /**
+     * Handle token validation request
+     */
+    public function handle_validate($request) {
+        $user_id = $this->get_current_user_id();
+
+        if (!$user_id) {
+            return new WP_Error('unauthorized', 'Invalid token', array('status' => 401));
+        }
+
+        $user_data = $this->get_user_data($user_id);
+
+        return new WP_REST_Response(array(
+            'success' => true,
+            'valid' => true,
+            'user' => $user_data
+        ), 200);
+    }
+
+    /**
+     * Generate JWT token
+     */
+    private function generate_token($user_id, $type = 'access') {
+        $issued_at = time();
+        $expiry = $type === 'refresh' ? $this->refresh_expiry : $this->token_expiry;
+
+        $payload = array(
+            'iat' => $issued_at,
+            'exp' => $issued_at + $expiry,
+            'user_id' => $user_id,
+            'type' => $type
+        );
+
+        return $this->encode_token($payload);
+    }
+
+    /**
+     * Simple JWT encoding (header.payload.signature)
+     */
+    private function encode_token($payload) {
+        $header = array('typ' => 'JWT', 'alg' => 'HS256');
+
+        $segments = array();
+        $segments[] = $this->base64url_encode(json_encode($header));
+        $segments[] = $this->base64url_encode(json_encode($payload));
+
+        $signing_input = implode('.', $segments);
+        $signature = hash_hmac('sha256', $signing_input, $this->secret_key, true);
+        $segments[] = $this->base64url_encode($signature);
+
+        return implode('.', $segments);
+    }
+
+    /**
+     * Simple JWT decoding
+     */
+    private function decode_token($token) {
+        $segments = explode('.', $token);
+
+        if (count($segments) !== 3) {
+            return false;
+        }
+
+        list($header_b64, $payload_b64, $signature_b64) = $segments;
+
+        // Verify signature
+        $signing_input = $header_b64 . '.' . $payload_b64;
+        $signature = $this->base64url_decode($signature_b64);
+        $expected_signature = hash_hmac('sha256', $signing_input, $this->secret_key, true);
+
+        if (!hash_equals($signature, $expected_signature)) {
+            return false;
+        }
+
+        // Decode payload
+        $payload = json_decode($this->base64url_decode($payload_b64));
+
+        if (!$payload) {
+            return false;
+        }
+
+        // Check expiration
+        if (isset($payload->exp) && $payload->exp < time()) {
+            return false;
+        }
+
+        return $payload;
+    }
+
+    /**
+     * Base64 URL encode
+     */
+    private function base64url_encode($data) {
+        return rtrim(strtr(base64_encode($data), '+/', '-_'), '=');
+    }
+
+    /**
+     * Base64 URL decode
+     */
+    private function base64url_decode($data) {
+        return base64_decode(strtr($data, '-_', '+/'));
+    }
+
+    /**
+     * Verify token (permission callback)
+     */
+    public function verify_token($request) {
+        $auth_header = $request->get_header('Authorization');
+
+        if (empty($auth_header)) {
+            return false;
+        }
+
+        // Extract token from "Bearer <token>"
+        if (preg_match('/Bearer\s+(.*)$/i', $auth_header, $matches)) {
+            $token = $matches[1];
+        } else {
+            return false;
+        }
+
+        $payload = $this->decode_token($token);
+
+        if (!$payload || $payload->type !== 'access') {
+            return false;
+        }
+
+        // Store user ID for later use
+        $request->set_param('_twp_user_id', $payload->user_id);
+
+        return true;
+    }
+
+    /**
+     * Get current user ID from token
+     */
+    public function get_current_user_id() {
+        $request = rest_get_server()->get_request();
+        return $request->get_param('_twp_user_id');
+    }
+
+    /**
+     * Store session in database
+     */
+    private function store_session($user_id, $refresh_token, $fcm_token = null, $device_info = null) {
+        global $wpdb;
+        $table = $wpdb->prefix . 'twp_mobile_sessions';
+
+        $wpdb->insert(
+            $table,
+            array(
+                'user_id' => $user_id,
+                'refresh_token' => $refresh_token,
+                'fcm_token' => $fcm_token,
+                'device_info' => $device_info,
+                'created_at' => current_time('mysql'),
+                'expires_at' => date('Y-m-d H:i:s', time() + $this->refresh_expiry),
+                'last_used' => current_time('mysql'),
+                'is_active' => 1
+            ),
+            array('%d', '%s', '%s', '%s', '%s', '%s', '%s', '%d')
+        );
+    }
+
+    /**
+     * Get user data for response
+     */
+    private function get_user_data($user_id) {
+        $user = get_userdata($user_id);
+
+        if (!$user) {
+            return null;
+        }
+
+        // Get agent phone number
+        $agent_number = get_user_meta($user_id, 'twp_agent_phone', true);
+
+        // Get agent status
+        global $wpdb;
+        $status_table = $wpdb->prefix . 'twp_agent_status';
+        $status = $wpdb->get_row($wpdb->prepare(
+            "SELECT status, is_logged_in, current_call_sid FROM $status_table WHERE user_id = %d",
+            $user_id
+        ));
+
+        // Get user extension
+        $ext_table = $wpdb->prefix . 'twp_user_extensions';
+        $extension = $wpdb->get_row($wpdb->prepare(
+            "SELECT extension, direct_dial_number FROM $ext_table WHERE user_id = %d",
+            $user_id
+        ));
+
+        return array(
+            'id' => $user->ID,
+            'username' => $user->user_login,
+            'display_name' => $user->display_name,
+            'email' => $user->user_email,
+            'phone_number' => $agent_number,
+            'extension' => $extension ? $extension->extension : null,
+            'direct_dial' => $extension ? $extension->direct_dial_number : null,
+            'status' => $status ? $status->status : 'offline',
+            'is_logged_in' => $status ? (bool)$status->is_logged_in : false,
+            'current_call_sid' => $status ? $status->current_call_sid : null,
+            'capabilities' => array(
+                'can_access_browser_phone' => user_can($user_id, 'twp_access_browser_phone'),
+                'can_access_voicemails' => user_can($user_id, 'twp_access_voicemails'),
+                'can_access_call_log' => user_can($user_id, 'twp_access_call_log'),
+                'can_access_agent_queue' => user_can($user_id, 'twp_access_agent_queue'),
+                'can_access_sms_inbox' => user_can($user_id, 'twp_access_sms_inbox'),
+                'is_admin' => user_can($user_id, 'manage_options')
+            )
+        );
+    }
+
+    /**
+     * Update FCM token for existing session
+     */
+    public function update_fcm_token($user_id, $refresh_token, $fcm_token) {
+        global $wpdb;
+        $table = $wpdb->prefix . 'twp_mobile_sessions';
+
+        $wpdb->update(
+            $table,
+            array('fcm_token' => $fcm_token),
+            array('user_id' => $user_id, 'refresh_token' => $refresh_token, 'is_active' => 1),
+            array('%s'),
+            array('%d', '%s', '%d')
+        );
+    }
+
+    /**
+     * Get all active FCM tokens for a user
+     */
+    public function get_user_fcm_tokens($user_id) {
+        global $wpdb;
+        $table = $wpdb->prefix . 'twp_mobile_sessions';
+
+        return $wpdb->get_col($wpdb->prepare(
+            "SELECT fcm_token FROM $table WHERE user_id = %d AND is_active = 1 AND fcm_token IS NOT NULL AND expires_at > NOW()",
+            $user_id
+        ));
+    }
+
+    /**
+     * Clean up expired sessions
+     */
+    public static function cleanup_expired_sessions() {
+        global $wpdb;
+        $table = $wpdb->prefix . 'twp_mobile_sessions';
+
+        $wpdb->query("UPDATE $table SET is_active = 0 WHERE expires_at < NOW() AND is_active = 1");
+    }
+}

includes/class-twp-mobile-sse.php

@@ -0,0 +1,310 @@
+<?php
+/**
+ * Server-Sent Events (SSE) Handler for Mobile App
+ *
+ * Provides real-time updates for queue state, incoming calls, and agent status
+ */
+class TWP_Mobile_SSE {
+
+    private $auth;
+
+    /**
+     * Constructor
+     */
+    public function __construct() {
+        require_once plugin_dir_path(__FILE__) . 'class-twp-mobile-auth.php';
+        $this->auth = new TWP_Mobile_Auth();
+    }
+
+    /**
+     * Register SSE endpoint
+     */
+    public function register_endpoints() {
+        add_action('rest_api_init', function() {
+            register_rest_route('twilio-mobile/v1', '/stream/events', array(
+                'methods' => 'GET',
+                'callback' => array($this, 'stream_events'),
+                'permission_callback' => array($this->auth, 'verify_token')
+            ));
+        });
+    }
+
+    /**
+     * Stream events to mobile app
+     */
+    public function stream_events($request) {
+        $user_id = $this->auth->get_current_user_id();
+
+        if (!$user_id) {
+            return new WP_Error('unauthorized', 'Invalid token', array('status' => 401));
+        }
+
+        // Set headers for SSE
+        header('Content-Type: text/event-stream');
+        header('Cache-Control: no-cache');
+        header('Connection: keep-alive');
+        header('X-Accel-Buffering: no'); // Disable nginx buffering
+
+        // Disable PHP output buffering
+        if (function_exists('apache_setenv')) {
+            @apache_setenv('no-gzip', '1');
+        }
+        @ini_set('zlib.output_compression', 0);
+        @ini_set('implicit_flush', 1);
+        ob_implicit_flush(1);
+        while (ob_get_level() > 0) {
+            ob_end_flush();
+        }
+
+        // Send initial connection event
+        $this->send_event('connected', array('user_id' => $user_id, 'timestamp' => time()));
+
+        // Get initial state
+        $last_check = time();
+        $previous_state = $this->get_current_state($user_id);
+
+        // Stream loop - check for changes every 2 seconds
+        $max_duration = 300; // 5 minutes max connection time
+        $start_time = time();
+
+        while (time() - $start_time < $max_duration) {
+            // Check if connection is still alive
+            if (connection_aborted()) {
+                break;
+            }
+
+            // Get current state
+            $current_state = $this->get_current_state($user_id);
+
+            // Compare and send updates
+            $this->check_and_send_updates($previous_state, $current_state);
+
+            // Update previous state
+            $previous_state = $current_state;
+
+            // Send heartbeat every 15 seconds
+            if (time() - $last_check >= 15) {
+                $this->send_event('heartbeat', array('timestamp' => time()));
+                $last_check = time();
+            }
+
+            // Sleep for 2 seconds
+            sleep(2);
+        }
+
+        // Connection closing
+        $this->send_event('disconnect', array('reason' => 'timeout', 'timestamp' => time()));
+        exit;
+    }
+
+    /**
+     * Get current state for agent
+     */
+    private function get_current_state($user_id) {
+        global $wpdb;
+
+        $state = array(
+            'agent_status' => $this->get_agent_status($user_id),
+            'queues' => $this->get_queues_state($user_id),
+            'current_call' => $this->get_current_call($user_id)
+        );
+
+        return $state;
+    }
+
+    /**
+     * Get agent status
+     */
+    private function get_agent_status($user_id) {
+        global $wpdb;
+        $table = $wpdb->prefix . 'twp_agent_status';
+
+        $status = $wpdb->get_row($wpdb->prepare(
+            "SELECT status, is_logged_in, current_call_sid FROM $table WHERE user_id = %d",
+            $user_id
+        ));
+
+        if (!$status) {
+            return array('status' => 'offline', 'is_logged_in' => false, 'current_call_sid' => null);
+        }
+
+        return array(
+            'status' => $status->status,
+            'is_logged_in' => (bool)$status->is_logged_in,
+            'current_call_sid' => $status->current_call_sid
+        );
+    }
+
+    /**
+     * Get queues state
+     */
+    private function get_queues_state($user_id) {
+        global $wpdb;
+        $queues_table = $wpdb->prefix . 'twp_call_queues';
+        $calls_table = $wpdb->prefix . 'twp_queued_calls';
+        $groups_table = $wpdb->prefix . 'twp_group_members';
+
+        // Auto-create personal queues if they don't exist
+        $extensions_table = $wpdb->prefix . 'twp_user_extensions';
+        $existing_extension = $wpdb->get_row($wpdb->prepare(
+            "SELECT extension FROM $extensions_table WHERE user_id = %d",
+            $user_id
+        ));
+
+        if (!$existing_extension) {
+            TWP_User_Queue_Manager::create_user_queues($user_id);
+        }
+
+        // Get queues where user is a member of the assigned agent group OR personal/hold queues
+        $queues = $wpdb->get_results($wpdb->prepare("
+            SELECT DISTINCT
+                q.id,
+                q.queue_name,
+                COUNT(c.id) as waiting_count,
+                MIN(c.enqueued_at) as oldest_call_time
+            FROM $queues_table q
+            LEFT JOIN $groups_table gm ON gm.group_id = q.agent_group_id
+            LEFT JOIN $calls_table c ON q.id = c.queue_id AND c.status = 'waiting'
+            WHERE (gm.user_id = %d AND gm.is_active = 1)
+               OR (q.user_id = %d AND q.queue_type IN ('personal', 'hold'))
+            GROUP BY q.id
+            ORDER BY
+                CASE
+                    WHEN q.queue_type = 'personal' THEN 1
+                    WHEN q.queue_type = 'hold' THEN 2
+                    ELSE 3
+                END,
+                q.queue_name ASC
+        ", $user_id, $user_id));
+
+        $result = array();
+        foreach ($queues as $queue) {
+            $result[$queue->id] = array(
+                'id' => (int)$queue->id,
+                'name' => $queue->queue_name,
+                'waiting_count' => (int)$queue->waiting_count,
+                'oldest_call_time' => $queue->oldest_call_time
+            );
+        }
+
+        return $result;
+    }
+
+    /**
+     * Get current call for agent
+     */
+    private function get_current_call($user_id) {
+        global $wpdb;
+        $calls_table = $wpdb->prefix . 'twp_queued_calls';
+
+        $agent_number = get_user_meta($user_id, 'twp_agent_phone', true);
+
+        if (!$agent_number) {
+            return null;
+        }
+
+        $call = $wpdb->get_row($wpdb->prepare(
+            "SELECT call_sid, from_number, queue_id, status, joined_at
+             FROM $calls_table
+             WHERE agent_phone = %s AND status IN ('connecting', 'in_progress')
+             ORDER BY joined_at DESC
+             LIMIT 1",
+            $agent_number
+        ));
+
+        if (!$call) {
+            return null;
+        }
+
+        return array(
+            'call_sid' => $call->call_sid,
+            'from_number' => $call->from_number,
+            'queue_id' => (int)$call->queue_id,
+            'status' => $call->status,
+            'duration' => time() - strtotime($call->joined_at)
+        );
+    }
+
+    /**
+     * Check state changes and send updates
+     */
+    private function check_and_send_updates($previous, $current) {
+        // Check agent status changes
+        if ($previous['agent_status'] !== $current['agent_status']) {
+            $this->send_event('agent_status_changed', $current['agent_status']);
+        }
+
+        // Check queue changes
+        $this->check_queue_changes($previous['queues'], $current['queues']);
+
+        // Check current call changes
+        if ($previous['current_call'] !== $current['current_call']) {
+            if ($current['current_call'] && !$previous['current_call']) {
+                // New call started
+                $this->send_event('call_started', $current['current_call']);
+            } elseif (!$current['current_call'] && $previous['current_call']) {
+                // Call ended
+                $this->send_event('call_ended', $previous['current_call']);
+            } elseif ($current['current_call'] && $previous['current_call']) {
+                // Call status changed
+                if ($current['current_call']['status'] !== $previous['current_call']['status']) {
+                    $this->send_event('call_status_changed', $current['current_call']);
+                }
+            }
+        }
+    }
+
+    /**
+     * Check for queue changes
+     */
+    private function check_queue_changes($previous_queues, $current_queues) {
+        foreach ($current_queues as $queue_id => $current_queue) {
+            $previous_queue = $previous_queues[$queue_id] ?? null;
+
+            if (!$previous_queue) {
+                // New queue added
+                $this->send_event('queue_added', $current_queue);
+                continue;
+            }
+
+            // Check for waiting count changes
+            if ($current_queue['waiting_count'] !== $previous_queue['waiting_count']) {
+                if ($current_queue['waiting_count'] > $previous_queue['waiting_count']) {
+                    // New call in queue
+                    $this->send_event('call_enqueued', array(
+                        'queue_id' => $queue_id,
+                        'queue_name' => $current_queue['name'],
+                        'waiting_count' => $current_queue['waiting_count']
+                    ));
+                } else {
+                    // Call removed from queue
+                    $this->send_event('call_dequeued', array(
+                        'queue_id' => $queue_id,
+                        'queue_name' => $current_queue['name'],
+                        'waiting_count' => $current_queue['waiting_count']
+                    ));
+                }
+            }
+        }
+
+        // Check for removed queues
+        foreach ($previous_queues as $queue_id => $previous_queue) {
+            if (!isset($current_queues[$queue_id])) {
+                $this->send_event('queue_removed', array('queue_id' => $queue_id));
+            }
+        }
+    }
+
+    /**
+     * Send SSE event
+     */
+    private function send_event($event_type, $data) {
+        echo "event: $event_type\n";
+        echo "data: " . json_encode($data) . "\n\n";
+
+        if (ob_get_level() > 0) {
+            ob_flush();
+        }
+        flush();
+    }
+}

includes/class-twp-twilio-api.php

@@ -41,11 +41,26 @@ class TWP_Twilio_API {
      * Initialize Twilio SDK client
      */
     private function init_sdk_client() {
-        // Check if autoloader exists
-        $autoloader_path = TWP_PLUGIN_DIR . 'vendor/autoload.php';
-        if (!file_exists($autoloader_path)) {
-            error_log('TWP Plugin: Autoloader not found at: ' . $autoloader_path);
-            throw new Exception('Twilio SDK not found. Please run: ./install-twilio-sdk.sh');
+        // Check for SDK autoloader - external location first (survives plugin updates)
+        $autoloader_path = null;
+
+        // Priority 1: External SDK location (recommended)
+        $external_autoloader = TWP_EXTERNAL_SDK_DIR . 'autoload.php';
+        if (file_exists($external_autoloader)) {
+            $autoloader_path = $external_autoloader;
+        }
+
+        // Priority 2: Internal vendor directory (fallback)
+        if (!$autoloader_path) {
+            $internal_autoloader = TWP_PLUGIN_DIR . 'vendor/autoload.php';
+            if (file_exists($internal_autoloader)) {
+                $autoloader_path = $internal_autoloader;
+            }
+        }
+
+        if (!$autoloader_path) {
+            error_log('TWP Plugin: Autoloader not found. Checked: ' . $external_autoloader . ' and ' . TWP_PLUGIN_DIR . 'vendor/autoload.php');
+            throw new Exception('Twilio SDK not found. Please run: ./install-twilio-sdk-external.sh');
         }
 
         // Load the autoloader

includes/class-twp-webhooks.php

@@ -9,9 +9,25 @@ class TWP_Webhooks {
      */
     public function __construct() {
         // Load Twilio SDK if not already loaded
+        // Check external location first (survives plugin updates), then internal
         if (!class_exists('\Twilio\Rest\Client')) {
-            $autoloader_path = plugin_dir_path(dirname(__FILE__)) . 'vendor/autoload.php';
-            if (file_exists($autoloader_path)) {
+            $autoloader_path = null;
+
+            // Priority 1: External SDK location
+            $external_autoloader = dirname(dirname(plugin_dir_path(dirname(__FILE__)))) . '/twilio-sdk/autoload.php';
+            if (file_exists($external_autoloader)) {
+                $autoloader_path = $external_autoloader;
+            }
+
+            // Priority 2: Internal vendor directory
+            if (!$autoloader_path) {
+                $internal_autoloader = plugin_dir_path(dirname(__FILE__)) . 'vendor/autoload.php';
+                if (file_exists($internal_autoloader)) {
+                    $autoloader_path = $internal_autoloader;
+                }
+            }
+
+            if ($autoloader_path) {
                 require_once $autoloader_path;
             }
         }
@@ -461,6 +477,13 @@ class TWP_Webhooks {
                 $twilio_api->send_sms($agent_phone, $message, $twilio_number);
             }
         }
+
+        // Send FCM push notifications for missed browser call
+        require_once dirname(__FILE__) . '/class-twp-fcm.php';
+        $fcm = new TWP_FCM();
+        foreach ($agents as $agent) {
+            $fcm->notify_incoming_call($agent->ID, $customer_number, 'Browser Phone', '');
+        }
     }
 
     /**
@@ -688,6 +711,13 @@ class TWP_Webhooks {
                 $twilio_api->send_sms($agent_phone, $message, $twilio_number);
             }
         }
+
+        // Send FCM push notifications for missed call
+        require_once dirname(__FILE__) . '/class-twp-fcm.php';
+        $fcm = new TWP_FCM();
+        foreach ($agents as $agent) {
+            $fcm->notify_incoming_call($agent->ID, $customer_number, 'General', '');
+        }
     }
 
     /**

install-twilio-sdk-external.sh

@@ -0,0 +1,158 @@
+#!/bin/bash
+
+# Script to install Twilio PHP SDK to an external location
+# This prevents SDK from being deleted when WordPress updates the plugin
+#
+# Location: wp-content/twilio-sdk/ (outside plugin folder)
+
+echo "Installing Twilio PHP SDK v8.7.0 to external location..."
+echo "This will install the SDK outside the plugin folder to survive plugin updates."
+
+# Check if we can download files
+if ! command -v curl &> /dev/null; then
+    echo "ERROR: curl is required to download the SDK"
+    echo "Please install curl and try again"
+    exit 1
+fi
+
+if ! command -v tar &> /dev/null; then
+    echo "ERROR: tar is required to extract the SDK"
+    echo "Please install tar and try again"
+    exit 1
+fi
+
+# Get the script directory (plugin directory)
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+# Calculate wp-content directory (two levels up from plugin)
+# Plugin is at: wp-content/plugins/twilio-wp-plugin/
+# We want: wp-content/twilio-sdk/
+WP_CONTENT_DIR="$(dirname "$(dirname "$SCRIPT_DIR")")"
+SDK_DIR="$WP_CONTENT_DIR/twilio-sdk"
+
+echo "Plugin directory: $SCRIPT_DIR"
+echo "SDK will be installed to: $SDK_DIR"
+
+# Create SDK directory
+mkdir -p "$SDK_DIR/twilio/sdk"
+
+# Download the latest release (8.7.0)
+echo "Downloading Twilio SDK from GitHub..."
+TEMP_DIR=$(mktemp -d)
+cd "$TEMP_DIR"
+
+if ! curl -L https://github.com/twilio/twilio-php/archive/refs/tags/8.7.0.tar.gz -o twilio-sdk.tar.gz; then
+    echo "ERROR: Failed to download Twilio SDK"
+    echo "Please check your internet connection and try again"
+    rm -rf "$TEMP_DIR"
+    exit 1
+fi
+
+# Extract the archive
+echo "Extracting SDK files..."
+if ! tar -xzf twilio-sdk.tar.gz; then
+    echo "ERROR: Failed to extract SDK files"
+    rm -rf "$TEMP_DIR"
+    exit 1
+fi
+
+# Check if the extracted directory exists
+if [ ! -d "twilio-php-8.7.0/src" ]; then
+    echo "ERROR: Extracted SDK directory structure is unexpected"
+    rm -rf "$TEMP_DIR"
+    exit 1
+fi
+
+# Remove existing SDK if it exists
+if [ -d "$SDK_DIR/twilio/sdk" ]; then
+    echo "Removing existing SDK installation..."
+    rm -rf "$SDK_DIR/twilio/sdk"
+    mkdir -p "$SDK_DIR/twilio/sdk"
+fi
+
+# Move the entire src directory to be the sdk
+echo "Installing SDK files..."
+if ! mv twilio-php-8.7.0/src/* "$SDK_DIR/twilio/sdk/"; then
+    echo "ERROR: Failed to move SDK files"
+    rm -rf "$TEMP_DIR"
+    exit 1
+fi
+
+# Create a comprehensive autoloader
+cat > "$SDK_DIR/autoload.php" << 'EOF'
+<?php
+/**
+ * Twilio SDK v8.7.0 Autoloader (External Installation)
+ * This file loads the Twilio PHP SDK classes
+ *
+ * Location: wp-content/twilio-sdk/autoload.php
+ * This location survives WordPress plugin updates
+ */
+
+// Prevent multiple registrations
+if (!defined('TWILIO_AUTOLOADER_REGISTERED')) {
+    define('TWILIO_AUTOLOADER_REGISTERED', true);
+
+    // Register the autoloader
+    spl_autoload_register(function ($class) {
+        // Only handle Twilio classes
+        if (strpos($class, 'Twilio\\') !== 0) {
+            return false;
+        }
+
+        // Convert class name to file path
+        // The SDK structure is: twilio/sdk/Twilio/Rest/Client.php for Twilio\Rest\Client
+        $file = __DIR__ . '/twilio/sdk/' . str_replace('\\', '/', $class) . '.php';
+
+        if (file_exists($file)) {
+            require_once $file;
+            return true;
+        }
+
+        return false;
+    });
+
+    // Try to load the SDK's own autoloader if it exists
+    $sdk_autoloader = __DIR__ . '/twilio/sdk/autoload.php';
+    if (file_exists($sdk_autoloader)) {
+        require_once $sdk_autoloader;
+    }
+
+    // Load essential Twilio classes manually to ensure they're available
+    $essential_classes = [
+        __DIR__ . '/twilio/sdk/Twilio/Rest/Client.php',
+        __DIR__ . '/twilio/sdk/Twilio/TwiML/VoiceResponse.php',
+        __DIR__ . '/twilio/sdk/Twilio/Exceptions/TwilioException.php',
+        __DIR__ . '/twilio/sdk/Twilio/Security/RequestValidator.php'
+    ];
+
+    foreach ($essential_classes as $class_file) {
+        if (file_exists($class_file)) {
+            require_once $class_file;
+        }
+    }
+}
+EOF
+
+# Clean up temp directory
+cd "$SCRIPT_DIR"
+rm -rf "$TEMP_DIR"
+
+# Verify installation
+echo ""
+echo "Verifying installation..."
+if [ -f "$SDK_DIR/autoload.php" ] && [ -d "$SDK_DIR/twilio/sdk" ]; then
+    echo "=============================================="
+    echo "Twilio SDK v8.7.0 installed successfully!"
+    echo "=============================================="
+    echo ""
+    echo "Installation location: $SDK_DIR"
+    echo ""
+    echo "This SDK is installed OUTSIDE the plugin folder,"
+    echo "so it will NOT be deleted when WordPress updates the plugin."
+    echo ""
+    echo "The plugin will automatically detect this external SDK."
+else
+    echo "Installation failed - files not found"
+    exit 1
+fi

install-twilio-sdk.sh

@@ -79,8 +79,8 @@ if (!defined('TWILIO_AUTOLOADER_REGISTERED')) {
         }
 
         // Convert class name to file path
-        $relative_class = substr($class, 7); // Remove 'Twilio\'
-        $file = __DIR__ . '/twilio/sdk/' . str_replace('\\', '/', $relative_class) . '.php';
+        // The SDK structure is: twilio/sdk/Twilio/Rest/Client.php for Twilio\Rest\Client
+        $file = __DIR__ . '/twilio/sdk/' . str_replace('\\', '/', $class) . '.php';
 
         if (file_exists($file)) {
             require_once $file;
@@ -98,10 +98,10 @@ if (!defined('TWILIO_AUTOLOADER_REGISTERED')) {
     
     // Load essential Twilio classes manually to ensure they're available
     $essential_classes = [
-        __DIR__ . '/twilio/sdk/Rest/Client.php',
-        __DIR__ . '/twilio/sdk/TwiML/VoiceResponse.php',
-        __DIR__ . '/twilio/sdk/Exceptions/TwilioException.php',
-        __DIR__ . '/twilio/sdk/Security/RequestValidator.php'
+        __DIR__ . '/twilio/sdk/Twilio/Rest/Client.php',
+        __DIR__ . '/twilio/sdk/Twilio/TwiML/VoiceResponse.php',
+        __DIR__ . '/twilio/sdk/Twilio/Exceptions/TwilioException.php',
+        __DIR__ . '/twilio/sdk/Twilio/Security/RequestValidator.php'
     ];
     
     foreach ($essential_classes as $class_file) {

mobile/.gitignore

@@ -0,0 +1,45 @@
+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.build/
+.buildlog/
+.history
+.svn/
+.swiftpm/
+migrate_working_dir/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
+
+# Flutter/Dart/Pub related
+**/doc/api/
+**/ios/Flutter/.last_build_id
+.dart_tool/
+.flutter-plugins-dependencies
+.pub-cache/
+.pub/
+/build/
+/coverage/
+
+# Symbolication related
+app.*.symbols
+
+# Obfuscation related
+app.*.map.json
+
+# Android Studio will place build artifacts here
+/android/app/debug
+/android/app/profile
+/android/app/release

mobile/.metadata

@@ -0,0 +1,45 @@
+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: "ff37bef603469fb030f2b72995ab929ccfc227f0"
+  channel: "stable"
+
+project_type: app
+
+# Tracks metadata for the flutter migrate command
+migration:
+  platforms:
+    - platform: root
+      create_revision: ff37bef603469fb030f2b72995ab929ccfc227f0
+      base_revision: ff37bef603469fb030f2b72995ab929ccfc227f0
+    - platform: android
+      create_revision: ff37bef603469fb030f2b72995ab929ccfc227f0
+      base_revision: ff37bef603469fb030f2b72995ab929ccfc227f0
+    - platform: ios
+      create_revision: ff37bef603469fb030f2b72995ab929ccfc227f0
+      base_revision: ff37bef603469fb030f2b72995ab929ccfc227f0
+    - platform: linux
+      create_revision: ff37bef603469fb030f2b72995ab929ccfc227f0
+      base_revision: ff37bef603469fb030f2b72995ab929ccfc227f0
+    - platform: macos
+      create_revision: ff37bef603469fb030f2b72995ab929ccfc227f0
+      base_revision: ff37bef603469fb030f2b72995ab929ccfc227f0
+    - platform: web
+      create_revision: ff37bef603469fb030f2b72995ab929ccfc227f0
+      base_revision: ff37bef603469fb030f2b72995ab929ccfc227f0
+    - platform: windows
+      create_revision: ff37bef603469fb030f2b72995ab929ccfc227f0
+      base_revision: ff37bef603469fb030f2b72995ab929ccfc227f0
+
+  # User provided section
+
+  # List of Local paths (relative to this file) that should be
+  # ignored by the migrate tool.
+  #
+  # Files that are not part of the templates will be ignored by default.
+  unmanaged_files:
+    - 'lib/main.dart'
+    - 'ios/Runner.xcodeproj/project.pbxproj'

mobile/analysis_options.yaml

@@ -0,0 +1,7 @@
+include: package:flutter_lints/flutter.yaml
+
+linter:
+  rules:
+    prefer_const_constructors: true
+    prefer_const_declarations: true
+    avoid_print: true

mobile/android/app/build.gradle

@@ -0,0 +1,49 @@
+plugins {
+    id "com.android.application"
+    id "kotlin-android"
+    id "dev.flutter.flutter-gradle-plugin"
+    id "com.google.gms.google-services"
+}
+
+android {
+    namespace = "io.cloudhosting.twp.twp_softphone"
+    compileSdk = flutter.compileSdkVersion
+    ndkVersion = flutter.ndkVersion
+
+    compileOptions {
+        coreLibraryDesugaringEnabled true
+        sourceCompatibility = JavaVersion.VERSION_11
+        targetCompatibility = JavaVersion.VERSION_11
+    }
+
+    kotlinOptions {
+        jvmTarget = JavaVersion.VERSION_11
+    }
+
+    defaultConfig {
+        applicationId = "io.cloudhosting.twp.twp_softphone"
+        minSdkVersion 26
+        targetSdk = flutter.targetSdkVersion
+        versionCode = flutter.versionCode
+        versionName = flutter.versionName
+        multiDexEnabled true
+    }
+
+    buildTypes {
+        release {
+            signingConfig = signingConfigs.debug
+            minifyEnabled true
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+flutter {
+    source = "../.."
+}
+
+dependencies {
+    coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:2.1.4'
+    implementation platform('com.google.firebase:firebase-bom:33.0.0')
+    implementation 'com.google.firebase:firebase-messaging'
+}

mobile/android/app/google-services.json

@@ -0,0 +1,29 @@
+{
+  "project_info": {
+    "project_number": "187457540438",
+    "project_id": "twp-softphone",
+    "storage_bucket": "twp-softphone.firebasestorage.app"
+  },
+  "client": [
+    {
+      "client_info": {
+        "mobilesdk_app_id": "1:187457540438:android:d6d777270c23f6660946f7",
+        "android_client_info": {
+          "package_name": "io.cloudhosting.twp.twp_softphone"
+        }
+      },
+      "oauth_client": [],
+      "api_key": [
+        {
+          "current_key": "AIzaSyAdGJrWPy9b9arqHnlY5G_hsGiDcm6cchA"
+        }
+      ],
+      "services": {
+        "appinvite_service": {
+          "other_platform_oauth_client": []
+        }
+      }
+    }
+  ],
+  "configuration_version": "1"
+}

mobile/android/app/proguard-rules.pro

@@ -0,0 +1,9 @@
+# Twilio Voice SDK
+-keep class com.twilio.** { *; }
+-keep class tvo.webrtc.** { *; }
+
+# Firebase
+-keep class com.google.firebase.** { *; }
+
+# Flutter
+-keep class io.flutter.** { *; }

mobile/android/app/src/debug/AndroidManifest.xml

@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <!-- The INTERNET permission is required for development. Specifically,
+         the Flutter tool needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>

mobile/android/app/src/main/AndroidManifest.xml

@@ -0,0 +1,65 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <!-- Audio/Phone permissions for VoIP -->
+    <uses-permission android:name="android.permission.RECORD_AUDIO"/>
+    <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS"/>
+    <uses-permission android:name="android.permission.BLUETOOTH"/>
+    <uses-permission android:name="android.permission.BLUETOOTH_CONNECT"/>
+
+    <!-- Foreground service for active calls -->
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE"/>
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE_PHONE_CALL"/>
+
+    <!-- Full screen intent for incoming calls on lock screen -->
+    <uses-permission android:name="android.permission.USE_FULL_SCREEN_INTENT"/>
+    <uses-permission android:name="android.permission.WAKE_LOCK"/>
+    <uses-permission android:name="android.permission.MANAGE_OWN_CALLS"/>
+
+    <!-- Push notifications -->
+    <uses-permission android:name="android.permission.POST_NOTIFICATIONS"/>
+
+    <!-- Internet -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
+
+    <application
+        android:label="TWP Softphone"
+        android:name="${applicationName}"
+        android:icon="@mipmap/ic_launcher">
+        <activity
+            android:name=".MainActivity"
+            android:exported="true"
+            android:launchMode="singleTop"
+            android:taskAffinity=""
+            android:theme="@style/LaunchTheme"
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
+            android:hardwareAccelerated="true"
+            android:windowSoftInputMode="adjustResize"
+            android:showOnLockScreen="true"
+            android:turnScreenOn="true">
+            <meta-data
+              android:name="io.flutter.embedding.android.NormalTheme"
+              android:resource="@style/NormalTheme"
+              />
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+            <!-- FCM click action -->
+            <intent-filter>
+                <action android:name="FLUTTER_NOTIFICATION_CLICK"/>
+                <category android:name="android.intent.category.DEFAULT"/>
+            </intent-filter>
+        </activity>
+        <meta-data
+            android:name="flutterEmbedding"
+            android:value="2" />
+    </application>
+
+    <queries>
+        <intent>
+            <action android:name="android.intent.action.PROCESS_TEXT"/>
+            <data android:mimeType="text/plain"/>
+        </intent>
+    </queries>
+</manifest>

mobile/android/app/src/main/java/io/cloudhosting/twp/twp_softphone/MainActivity.kt

@@ -0,0 +1,5 @@
+package io.cloudhosting.twp.twp_softphone
+
+import io.flutter.embedding.android.FlutterActivity
+
+class MainActivity: FlutterActivity()

mobile/android/app/src/main/java/io/flutter/plugins/GeneratedPluginRegistrant.java

@@ -0,0 +1,49 @@
+package io.flutter.plugins;
+
+import androidx.annotation.Keep;
+import androidx.annotation.NonNull;
+import io.flutter.Log;
+
+import io.flutter.embedding.engine.FlutterEngine;
+
+/**
+ * Generated file. Do not edit.
+ * This file is generated by the Flutter tool based on the
+ * plugins that support the Android platform.
+ */
+@Keep
+public final class GeneratedPluginRegistrant {
+  private static final String TAG = "GeneratedPluginRegistrant";
+  public static void registerWith(@NonNull FlutterEngine flutterEngine) {
+    try {
+      flutterEngine.getPlugins().add(new io.flutter.plugins.firebase.core.FlutterFirebaseCorePlugin());
+    } catch (Exception e) {
+      Log.e(TAG, "Error registering plugin firebase_core, io.flutter.plugins.firebase.core.FlutterFirebaseCorePlugin", e);
+    }
+    try {
+      flutterEngine.getPlugins().add(new io.flutter.plugins.firebase.messaging.FlutterFirebaseMessagingPlugin());
+    } catch (Exception e) {
+      Log.e(TAG, "Error registering plugin firebase_messaging, io.flutter.plugins.firebase.messaging.FlutterFirebaseMessagingPlugin", e);
+    }
+    try {
+      flutterEngine.getPlugins().add(new com.dexterous.flutterlocalnotifications.FlutterLocalNotificationsPlugin());
+    } catch (Exception e) {
+      Log.e(TAG, "Error registering plugin flutter_local_notifications, com.dexterous.flutterlocalnotifications.FlutterLocalNotificationsPlugin", e);
+    }
+    try {
+      flutterEngine.getPlugins().add(new com.it_nomads.fluttersecurestorage.FlutterSecureStoragePlugin());
+    } catch (Exception e) {
+      Log.e(TAG, "Error registering plugin flutter_secure_storage, com.it_nomads.fluttersecurestorage.FlutterSecureStoragePlugin", e);
+    }
+    try {
+      flutterEngine.getPlugins().add(new io.flutter.plugins.pathprovider.PathProviderPlugin());
+    } catch (Exception e) {
+      Log.e(TAG, "Error registering plugin path_provider_android, io.flutter.plugins.pathprovider.PathProviderPlugin", e);
+    }
+    try {
+      flutterEngine.getPlugins().add(new com.twilio.twilio_voice.TwilioVoicePlugin());
+    } catch (Exception e) {
+      Log.e(TAG, "Error registering plugin twilio_voice, com.twilio.twilio_voice.TwilioVoicePlugin", e);
+    }
+  }
+}

mobile/android/app/src/main/res/values/styles.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <style name="LaunchTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <item name="android:windowBackground">@android:color/white</item>
+    </style>
+    <style name="NormalTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <item name="android:windowBackground">@android:color/white</item>
+    </style>
+</resources>

mobile/android/app/src/profile/AndroidManifest.xml

@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <!-- The INTERNET permission is required for development. Specifically,
+         the Flutter tool needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>

mobile/android/build.gradle

@@ -0,0 +1,18 @@
+allprojects {
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+rootProject.buildDir = "../build"
+subprojects {
+    project.buildDir = "${rootProject.buildDir}/${project.name}"
+}
+subprojects {
+    project.evaluationDependsOn(":app")
+}
+
+tasks.register("clean", Delete) {
+    delete rootProject.buildDir
+}

mobile/android/gradle.properties

@@ -0,0 +1,3 @@
+org.gradle.jvmargs=-Xmx4G -XX:MaxMetaspaceSize=2G -XX:+HeapDumpOnOutOfMemoryError
+android.useAndroidX=true
+android.enableJetifier=true

mobile/android/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.14-all.zip

mobile/android/local.properties

@@ -0,0 +1,2 @@
+flutter.sdk=/opt/flutter
+sdk.dir=/opt/android-sdk

mobile/android/settings.gradle

@@ -0,0 +1,26 @@
+pluginManagement {
+    def flutterSdkPath = {
+        def properties = new Properties()
+        file("local.properties").withInputStream { properties.load(it) }
+        def flutterSdkPath = properties.getProperty("flutter.sdk")
+        assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
+        return flutterSdkPath
+    }()
+
+    includeBuild("$flutterSdkPath/packages/flutter_tools/gradle")
+
+    repositories {
+        google()
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
+
+plugins {
+    id "dev.flutter.flutter-plugin-loader" version "1.0.0"
+    id "com.android.application" version "8.7.0" apply false
+    id "org.jetbrains.kotlin.android" version "2.1.0" apply false
+    id "com.google.gms.google-services" version "4.4.0" apply false
+}
+
+include ":app"

mobile/lib/app.dart

@@ -0,0 +1,65 @@
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import 'services/api_client.dart';
+import 'providers/auth_provider.dart';
+import 'providers/agent_provider.dart';
+import 'providers/call_provider.dart';
+import 'screens/login_screen.dart';
+import 'screens/dashboard_screen.dart';
+
+class TwpSoftphoneApp extends StatefulWidget {
+  const TwpSoftphoneApp({super.key});
+
+  @override
+  State<TwpSoftphoneApp> createState() => _TwpSoftphoneAppState();
+}
+
+class _TwpSoftphoneAppState extends State<TwpSoftphoneApp> {
+  final _apiClient = ApiClient();
+
+  @override
+  Widget build(BuildContext context) {
+    return ChangeNotifierProvider(
+      create: (_) {
+        final auth = AuthProvider(_apiClient);
+        auth.tryRestoreSession();
+        return auth;
+      },
+      child: MaterialApp(
+        title: 'TWP Softphone',
+        debugShowCheckedModeBanner: false,
+        theme: ThemeData(
+          colorSchemeSeed: Colors.blue,
+          useMaterial3: true,
+          brightness: Brightness.light,
+        ),
+        darkTheme: ThemeData(
+          colorSchemeSeed: Colors.blue,
+          useMaterial3: true,
+          brightness: Brightness.dark,
+        ),
+        home: Consumer<AuthProvider>(
+          builder: (context, auth, _) {
+            if (auth.state == AuthState.authenticated) {
+              return MultiProvider(
+                providers: [
+                  ChangeNotifierProvider(
+                    create: (_) => AgentProvider(
+                      auth.apiClient,
+                      auth.sseService,
+                    )..refresh(),
+                  ),
+                  ChangeNotifierProvider(
+                    create: (_) => CallProvider(auth.voiceService),
+                  ),
+                ],
+                child: const DashboardScreen(),
+              );
+            }
+            return const LoginScreen();
+          },
+        ),
+      ),
+    );
+  }
+}

mobile/lib/config/app_config.dart

@@ -0,0 +1,8 @@
+class AppConfig {
+  static const String appName = 'TWP Softphone';
+  static const Duration tokenRefreshInterval = Duration(minutes: 50);
+  static const Duration sseReconnectBase = Duration(seconds: 2);
+  static const Duration sseMaxReconnect = Duration(seconds: 60);
+  static const int sseServerTimeout = 300; // server closes after 5 min
+  static const String defaultScheme = 'https';
+}

mobile/lib/main.dart

@@ -0,0 +1,9 @@
+import 'package:flutter/material.dart';
+import 'package:firebase_core/firebase_core.dart';
+import 'app.dart';
+
+void main() async {
+  WidgetsFlutterBinding.ensureInitialized();
+  await Firebase.initializeApp();
+  runApp(const TwpSoftphoneApp());
+}

mobile/lib/models/agent_status.dart

@@ -0,0 +1,38 @@
+enum AgentStatusValue { available, busy, offline }
+
+class AgentStatus {
+  final AgentStatusValue status;
+  final bool isLoggedIn;
+  final String? currentCallSid;
+  final String? lastActivity;
+  final bool availableForQueues;
+
+  AgentStatus({
+    required this.status,
+    required this.isLoggedIn,
+    this.currentCallSid,
+    this.lastActivity,
+    this.availableForQueues = true,
+  });
+
+  factory AgentStatus.fromJson(Map<String, dynamic> json) {
+    return AgentStatus(
+      status: _parseStatus((json['status'] ?? 'offline') as String),
+      isLoggedIn: json['is_logged_in'] == true || json['is_logged_in'] == 1 || json['is_logged_in'] == '1',
+      currentCallSid: json['current_call_sid'] as String?,
+      lastActivity: json['last_activity'] as String?,
+      availableForQueues: json['available_for_queues'] != false && json['available_for_queues'] != 0 && json['available_for_queues'] != '0',
+    );
+  }
+
+  static AgentStatusValue _parseStatus(String s) {
+    switch (s) {
+      case 'available':
+        return AgentStatusValue.available;
+      case 'busy':
+        return AgentStatusValue.busy;
+      default:
+        return AgentStatusValue.offline;
+    }
+  }
+}

mobile/lib/models/call_info.dart

@@ -0,0 +1,46 @@
+enum CallState { idle, ringing, connecting, connected, disconnected }
+
+class CallInfo {
+  final CallState state;
+  final String? callSid;
+  final String? callerNumber;
+  final Duration duration;
+  final bool isMuted;
+  final bool isSpeakerOn;
+  final bool isOnHold;
+
+  const CallInfo({
+    this.state = CallState.idle,
+    this.callSid,
+    this.callerNumber,
+    this.duration = Duration.zero,
+    this.isMuted = false,
+    this.isSpeakerOn = false,
+    this.isOnHold = false,
+  });
+
+  CallInfo copyWith({
+    CallState? state,
+    String? callSid,
+    String? callerNumber,
+    Duration? duration,
+    bool? isMuted,
+    bool? isSpeakerOn,
+    bool? isOnHold,
+  }) {
+    return CallInfo(
+      state: state ?? this.state,
+      callSid: callSid ?? this.callSid,
+      callerNumber: callerNumber ?? this.callerNumber,
+      duration: duration ?? this.duration,
+      isMuted: isMuted ?? this.isMuted,
+      isSpeakerOn: isSpeakerOn ?? this.isSpeakerOn,
+      isOnHold: isOnHold ?? this.isOnHold,
+    );
+  }
+
+  bool get isActive =>
+      state == CallState.ringing ||
+      state == CallState.connecting ||
+      state == CallState.connected;
+}

mobile/lib/models/queue_state.dart

@@ -0,0 +1,66 @@
+class QueueInfo {
+  final int id;
+  final String name;
+  final String type;
+  final String? extension;
+  final int waitingCount;
+
+  QueueInfo({
+    required this.id,
+    required this.name,
+    required this.type,
+    this.extension,
+    required this.waitingCount,
+  });
+
+  factory QueueInfo.fromJson(Map<String, dynamic> json) {
+    return QueueInfo(
+      id: _toInt(json['id']),
+      name: (json['name'] ?? '') as String,
+      type: (json['type'] ?? '') as String,
+      extension: json['extension'] as String?,
+      waitingCount: _toInt(json['waiting_count']),
+    );
+  }
+
+  static int _toInt(dynamic value) {
+    if (value is int) return value;
+    if (value is String) return int.tryParse(value) ?? 0;
+    return 0;
+  }
+}
+
+class QueueCall {
+  final String callSid;
+  final String fromNumber;
+  final String toNumber;
+  final int position;
+  final String status;
+  final int waitTime;
+
+  QueueCall({
+    required this.callSid,
+    required this.fromNumber,
+    required this.toNumber,
+    required this.position,
+    required this.status,
+    required this.waitTime,
+  });
+
+  factory QueueCall.fromJson(Map<String, dynamic> json) {
+    return QueueCall(
+      callSid: (json['call_sid'] ?? '') as String,
+      fromNumber: (json['from_number'] ?? '') as String,
+      toNumber: (json['to_number'] ?? '') as String,
+      position: _toInt(json['position']),
+      status: (json['status'] ?? '') as String,
+      waitTime: _toInt(json['wait_time']),
+    );
+  }
+
+  static int _toInt(dynamic value) {
+    if (value is int) return value;
+    if (value is String) return int.tryParse(value) ?? 0;
+    return 0;
+  }
+}

mobile/lib/models/user.dart

@@ -0,0 +1,28 @@
+class User {
+  final int id;
+  final String login;
+  final String displayName;
+  final String? email;
+
+  User({
+    required this.id,
+    required this.login,
+    required this.displayName,
+    this.email,
+  });
+
+  factory User.fromJson(Map<String, dynamic> json) {
+    return User(
+      id: _toInt(json['user_id']),
+      login: (json['user_login'] ?? '') as String,
+      displayName: (json['display_name'] ?? '') as String,
+      email: json['email'] as String?,
+    );
+  }
+
+  static int _toInt(dynamic value) {
+    if (value is int) return value;
+    if (value is String) return int.tryParse(value) ?? 0;
+    return 0;
+  }
+}

mobile/lib/providers/agent_provider.dart

@@ -0,0 +1,88 @@
+import 'dart:async';
+import 'package:flutter/foundation.dart';
+import '../models/agent_status.dart';
+import '../models/queue_state.dart';
+import '../services/api_client.dart';
+import '../services/sse_service.dart';
+
+class AgentProvider extends ChangeNotifier {
+  final ApiClient _api;
+  final SseService _sse;
+
+  AgentStatus? _status;
+  List<QueueInfo> _queues = [];
+  bool _sseConnected = false;
+  StreamSubscription? _sseSub;
+  StreamSubscription? _connSub;
+
+  AgentStatus? get status => _status;
+  List<QueueInfo> get queues => _queues;
+  bool get sseConnected => _sseConnected;
+
+  AgentProvider(this._api, this._sse) {
+    _connSub = _sse.connectionState.listen((connected) {
+      _sseConnected = connected;
+      notifyListeners();
+    });
+
+    _sseSub = _sse.events.listen(_handleSseEvent);
+  }
+
+  Future<void> fetchStatus() async {
+    try {
+      final response = await _api.dio.get('/agent/status');
+      _status = AgentStatus.fromJson(response.data);
+      notifyListeners();
+    } catch (_) {}
+  }
+
+  Future<void> updateStatus(AgentStatusValue newStatus) async {
+    final statusStr = newStatus.name;
+    try {
+      await _api.dio.post('/agent/status', data: {
+        'status': statusStr,
+        'is_logged_in': true,
+      });
+      _status = AgentStatus(
+        status: newStatus,
+        isLoggedIn: true,
+        currentCallSid: _status?.currentCallSid,
+      );
+      notifyListeners();
+    } catch (_) {}
+  }
+
+  Future<void> fetchQueues() async {
+    try {
+      final response = await _api.dio.get('/queues/state');
+      final data = response.data;
+      _queues = (data['queues'] as List)
+          .map((q) => QueueInfo.fromJson(q as Map<String, dynamic>))
+          .toList();
+      notifyListeners();
+    } catch (_) {}
+  }
+
+  Future<void> refresh() async {
+    await Future.wait([fetchStatus(), fetchQueues()]);
+  }
+
+  void _handleSseEvent(SseEvent event) {
+    switch (event.event) {
+      case 'call_enqueued':
+      case 'call_dequeued':
+        fetchQueues();
+        break;
+      case 'agent_status_changed':
+        fetchStatus();
+        break;
+    }
+  }
+
+  @override
+  void dispose() {
+    _sseSub?.cancel();
+    _connSub?.cancel();
+    super.dispose();
+  }
+}

mobile/lib/providers/auth_provider.dart

@@ -0,0 +1,107 @@
+import 'package:flutter/foundation.dart';
+import '../models/user.dart';
+import '../services/api_client.dart';
+import '../services/auth_service.dart';
+import '../services/voice_service.dart';
+import '../services/push_notification_service.dart';
+import '../services/sse_service.dart';
+
+enum AuthState { unauthenticated, authenticating, authenticated }
+
+class AuthProvider extends ChangeNotifier {
+  final ApiClient _apiClient;
+  late final AuthService _authService;
+  late final VoiceService _voiceService;
+  late final PushNotificationService _pushService;
+  late final SseService _sseService;
+
+  AuthState _state = AuthState.unauthenticated;
+  User? _user;
+  String? _error;
+
+  AuthState get state => _state;
+  User? get user => _user;
+  String? get error => _error;
+  VoiceService get voiceService => _voiceService;
+  SseService get sseService => _sseService;
+  ApiClient get apiClient => _apiClient;
+
+  AuthProvider(this._apiClient) {
+    _authService = AuthService(_apiClient);
+    _voiceService = VoiceService(_apiClient);
+    _pushService = PushNotificationService(_apiClient);
+    _sseService = SseService(_apiClient);
+
+    _apiClient.onForceLogout = _handleForceLogout;
+  }
+
+  Future<void> tryRestoreSession() async {
+    final restored = await _authService.tryRestoreSession();
+    if (restored) {
+      _state = AuthState.authenticated;
+      await _initializeServices();
+      notifyListeners();
+    }
+  }
+
+  Future<void> login(String serverUrl, String username, String password) async {
+    _state = AuthState.authenticating;
+    _error = null;
+    notifyListeners();
+
+    try {
+      _user = await _authService.login(serverUrl, username, password);
+      _state = AuthState.authenticated;
+      await _initializeServices();
+    } catch (e) {
+      _state = AuthState.unauthenticated;
+      _error = e.toString().replaceFirst('Exception: ', '');
+    }
+    notifyListeners();
+  }
+
+  Future<void> _initializeServices() async {
+    try {
+      await _pushService.initialize();
+    } catch (_) {}
+    try {
+      await _voiceService.initialize();
+    } catch (_) {}
+    try {
+      await _sseService.connect();
+    } catch (_) {}
+  }
+
+  Future<void> logout() async {
+    _voiceService.dispose();
+    _sseService.disconnect();
+    await _authService.logout();
+
+    _state = AuthState.unauthenticated;
+    _user = null;
+    _error = null;
+
+    // Re-create services for potential re-login
+    _voiceService = VoiceService(_apiClient);
+    _pushService = PushNotificationService(_apiClient);
+    _sseService = SseService(_apiClient);
+
+    notifyListeners();
+  }
+
+  void _handleForceLogout() {
+    _state = AuthState.unauthenticated;
+    _user = null;
+    _error = 'Session expired. Please log in again.';
+    _sseService.disconnect();
+    notifyListeners();
+  }
+
+  @override
+  void dispose() {
+    _authService.dispose();
+    _voiceService.dispose();
+    _sseService.dispose();
+    super.dispose();
+  }
+}

mobile/lib/providers/call_provider.dart

@@ -0,0 +1,143 @@
+import 'dart:async';
+import 'package:flutter/foundation.dart';
+import 'package:twilio_voice/twilio_voice.dart';
+import '../models/call_info.dart';
+import '../services/voice_service.dart';
+
+class CallProvider extends ChangeNotifier {
+  final VoiceService _voiceService;
+  CallInfo _callInfo = const CallInfo();
+  Timer? _durationTimer;
+  StreamSubscription? _eventSub;
+  DateTime? _connectedAt;
+
+  CallInfo get callInfo => _callInfo;
+
+  CallProvider(this._voiceService) {
+    _eventSub = _voiceService.callEvents.listen(_handleCallEvent);
+  }
+
+  void _handleCallEvent(CallEvent event) {
+    switch (event) {
+      case CallEvent.incoming:
+        _callInfo = _callInfo.copyWith(
+          state: CallState.ringing,
+        );
+        break;
+      case CallEvent.ringing:
+        _callInfo = _callInfo.copyWith(state: CallState.connecting);
+        break;
+      case CallEvent.connected:
+        _connectedAt = DateTime.now();
+        _callInfo = _callInfo.copyWith(state: CallState.connected);
+        _startDurationTimer();
+        break;
+      case CallEvent.callEnded:
+        _stopDurationTimer();
+        _callInfo = const CallInfo(); // reset to idle
+        break;
+      case CallEvent.returningCall:
+        _callInfo = _callInfo.copyWith(state: CallState.connecting);
+        break;
+      case CallEvent.reconnecting:
+        break;
+      case CallEvent.reconnected:
+        break;
+      default:
+        break;
+    }
+
+    // Update caller info from active call
+    final call = TwilioVoice.instance.call;
+    final active = call.activeCall;
+    if (active != null) {
+      _callInfo = _callInfo.copyWith(
+        callerNumber: active.from,
+      );
+      // Fetch SID asynchronously
+      call.getSid().then((sid) {
+        if (sid != null && sid != _callInfo.callSid) {
+          _callInfo = _callInfo.copyWith(callSid: sid);
+          notifyListeners();
+        }
+      });
+    }
+
+    notifyListeners();
+  }
+
+  void _startDurationTimer() {
+    _durationTimer?.cancel();
+    _durationTimer = Timer.periodic(const Duration(seconds: 1), (_) {
+      if (_connectedAt != null) {
+        _callInfo = _callInfo.copyWith(
+          duration: DateTime.now().difference(_connectedAt!),
+        );
+        notifyListeners();
+      }
+    });
+  }
+
+  void _stopDurationTimer() {
+    _durationTimer?.cancel();
+    _connectedAt = null;
+  }
+
+  Future<void> answer() => _voiceService.answer();
+  Future<void> reject() => _voiceService.reject();
+  Future<void> hangUp() => _voiceService.hangUp();
+
+  Future<void> toggleMute() async {
+    final newMuted = !_callInfo.isMuted;
+    await _voiceService.toggleMute(newMuted);
+    _callInfo = _callInfo.copyWith(isMuted: newMuted);
+    notifyListeners();
+  }
+
+  Future<void> toggleSpeaker() async {
+    final newSpeaker = !_callInfo.isSpeakerOn;
+    await _voiceService.toggleSpeaker(newSpeaker);
+    _callInfo = _callInfo.copyWith(isSpeakerOn: newSpeaker);
+    notifyListeners();
+  }
+
+  Future<void> sendDigits(String digits) => _voiceService.sendDigits(digits);
+
+  Future<void> makeCall(String number) async {
+    _callInfo = _callInfo.copyWith(
+      state: CallState.connecting,
+      callerNumber: number,
+    );
+    notifyListeners();
+    await _voiceService.makeCall(number);
+  }
+
+  Future<void> holdCall() async {
+    final sid = _callInfo.callSid;
+    if (sid == null) return;
+    await _voiceService.holdCall(sid);
+    _callInfo = _callInfo.copyWith(isOnHold: true);
+    notifyListeners();
+  }
+
+  Future<void> unholdCall() async {
+    final sid = _callInfo.callSid;
+    if (sid == null) return;
+    await _voiceService.unholdCall(sid);
+    _callInfo = _callInfo.copyWith(isOnHold: false);
+    notifyListeners();
+  }
+
+  Future<void> transferCall(String target) async {
+    final sid = _callInfo.callSid;
+    if (sid == null) return;
+    await _voiceService.transferCall(sid, target);
+  }
+
+  @override
+  void dispose() {
+    _stopDurationTimer();
+    _eventSub?.cancel();
+    super.dispose();
+  }
+}

mobile/lib/screens/active_call_screen.dart

@@ -0,0 +1,137 @@
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import '../providers/call_provider.dart';
+import '../models/call_info.dart';
+import '../widgets/call_controls.dart';
+import '../widgets/dialpad.dart';
+
+class ActiveCallScreen extends StatefulWidget {
+  const ActiveCallScreen({super.key});
+
+  @override
+  State<ActiveCallScreen> createState() => _ActiveCallScreenState();
+}
+
+class _ActiveCallScreenState extends State<ActiveCallScreen> {
+  bool _showDialpad = false;
+
+  @override
+  Widget build(BuildContext context) {
+    final call = context.watch<CallProvider>();
+    final info = call.callInfo;
+
+    // Pop back when call ends
+    if (info.state == CallState.idle) {
+      WidgetsBinding.instance.addPostFrameCallback((_) {
+        if (mounted) Navigator.of(context).pop();
+      });
+    }
+
+    return Scaffold(
+      backgroundColor: Theme.of(context).colorScheme.surfaceContainerHighest,
+      body: SafeArea(
+        child: Column(
+          children: [
+            const Spacer(flex: 2),
+            // Caller info
+            Text(
+              info.callerNumber ?? 'Unknown',
+              style: Theme.of(context)
+                  .textTheme
+                  .headlineMedium
+                  ?.copyWith(fontWeight: FontWeight.bold),
+            ),
+            const SizedBox(height: 8),
+            Text(
+              _stateLabel(info.state),
+              style: Theme.of(context).textTheme.bodyLarge?.copyWith(
+                    color: Theme.of(context).colorScheme.onSurfaceVariant,
+                  ),
+            ),
+            const SizedBox(height: 4),
+            if (info.state == CallState.connected)
+              Text(
+                _formatDuration(info.duration),
+                style: Theme.of(context).textTheme.titleMedium,
+              ),
+            const Spacer(flex: 2),
+            // Dialpad overlay
+            if (_showDialpad)
+              Dialpad(
+                onDigit: (d) => call.sendDigits(d),
+                onClose: () => setState(() => _showDialpad = false),
+              ),
+            // Controls
+            if (!_showDialpad)
+              CallControls(
+                callInfo: info,
+                onMute: () => call.toggleMute(),
+                onSpeaker: () => call.toggleSpeaker(),
+                onHold: () =>
+                    info.isOnHold ? call.unholdCall() : call.holdCall(),
+                onDialpad: () => setState(() => _showDialpad = true),
+                onTransfer: () => _showTransferDialog(context, call),
+                onHangUp: () => call.hangUp(),
+              ),
+            const Spacer(),
+          ],
+        ),
+      ),
+    );
+  }
+
+  String _stateLabel(CallState state) {
+    switch (state) {
+      case CallState.ringing:
+        return 'Ringing...';
+      case CallState.connecting:
+        return 'Connecting...';
+      case CallState.connected:
+        return 'Connected';
+      case CallState.disconnected:
+        return 'Disconnected';
+      case CallState.idle:
+        return '';
+    }
+  }
+
+  String _formatDuration(Duration d) {
+    final minutes = d.inMinutes.toString().padLeft(2, '0');
+    final seconds = (d.inSeconds % 60).toString().padLeft(2, '0');
+    return '$minutes:$seconds';
+  }
+
+  void _showTransferDialog(BuildContext context, CallProvider call) {
+    final controller = TextEditingController();
+    showDialog(
+      context: context,
+      builder: (ctx) => AlertDialog(
+        title: const Text('Transfer Call'),
+        content: TextField(
+          controller: controller,
+          decoration: const InputDecoration(
+            labelText: 'Extension or Queue ID',
+            border: OutlineInputBorder(),
+          ),
+          keyboardType: TextInputType.number,
+        ),
+        actions: [
+          TextButton(
+            onPressed: () => Navigator.pop(ctx),
+            child: const Text('Cancel'),
+          ),
+          FilledButton(
+            onPressed: () {
+              final target = controller.text.trim();
+              if (target.isNotEmpty) {
+                call.transferCall(target);
+                Navigator.pop(ctx);
+              }
+            },
+            child: const Text('Transfer'),
+          ),
+        ],
+      ),
+    );
+  }
+}

mobile/lib/screens/dashboard_screen.dart

@@ -0,0 +1,177 @@
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import '../providers/agent_provider.dart';
+import '../providers/call_provider.dart';
+import '../widgets/agent_status_toggle.dart';
+import '../widgets/dialpad.dart';
+import '../widgets/queue_card.dart';
+import 'active_call_screen.dart';
+import 'settings_screen.dart';
+
+class DashboardScreen extends StatefulWidget {
+  const DashboardScreen({super.key});
+
+  @override
+  State<DashboardScreen> createState() => _DashboardScreenState();
+}
+
+class _DashboardScreenState extends State<DashboardScreen> {
+  @override
+  void initState() {
+    super.initState();
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      context.read<AgentProvider>().refresh();
+    });
+  }
+
+  void _showDialer(BuildContext context) {
+    final numberController = TextEditingController();
+
+    showModalBottomSheet(
+      context: context,
+      isScrollControlled: true,
+      shape: const RoundedRectangleBorder(
+        borderRadius: BorderRadius.vertical(top: Radius.circular(16)),
+      ),
+      builder: (ctx) {
+        return Padding(
+          padding: EdgeInsets.only(
+            bottom: MediaQuery.of(ctx).viewInsets.bottom,
+            top: 16,
+            left: 16,
+            right: 16,
+          ),
+          child: Column(
+            mainAxisSize: MainAxisSize.min,
+            children: [
+              // Number display
+              TextField(
+                controller: numberController,
+                keyboardType: TextInputType.phone,
+                autofillHints: const [AutofillHints.telephoneNumber],
+                textAlign: TextAlign.center,
+                style: Theme.of(ctx).textTheme.headlineSmall,
+                decoration: InputDecoration(
+                  hintText: 'Enter phone number',
+                  suffixIcon: IconButton(
+                    icon: const Icon(Icons.backspace_outlined),
+                    onPressed: () {
+                      final text = numberController.text;
+                      if (text.isNotEmpty) {
+                        numberController.text =
+                            text.substring(0, text.length - 1);
+                        numberController.selection = TextSelection.fromPosition(
+                          TextPosition(offset: numberController.text.length),
+                        );
+                      }
+                    },
+                  ),
+                ),
+              ),
+              const SizedBox(height: 16),
+              // Dialpad
+              Dialpad(
+                onDigit: (digit) {
+                  numberController.text += digit;
+                  numberController.selection = TextSelection.fromPosition(
+                    TextPosition(offset: numberController.text.length),
+                  );
+                },
+                onClose: () => Navigator.pop(ctx),
+              ),
+              const SizedBox(height: 8),
+              // Call button
+              ElevatedButton.icon(
+                style: ElevatedButton.styleFrom(
+                  backgroundColor: Colors.green,
+                  foregroundColor: Colors.white,
+                  minimumSize: const Size(double.infinity, 48),
+                  shape: RoundedRectangleBorder(
+                    borderRadius: BorderRadius.circular(24),
+                  ),
+                ),
+                icon: const Icon(Icons.call),
+                label: const Text('Call'),
+                onPressed: () {
+                  final number = numberController.text.trim();
+                  if (number.isNotEmpty) {
+                    context.read<CallProvider>().makeCall(number);
+                    Navigator.pop(ctx);
+                  }
+                },
+              ),
+              const SizedBox(height: 16),
+            ],
+          ),
+        );
+      },
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final agent = context.watch<AgentProvider>();
+    final call = context.watch<CallProvider>();
+
+    // Navigate to active call screen when a call comes in
+    if (call.callInfo.isActive) {
+      WidgetsBinding.instance.addPostFrameCallback((_) {
+        Navigator.of(context).pushAndRemoveUntil(
+          MaterialPageRoute(builder: (_) => const ActiveCallScreen()),
+          (route) => route.isFirst,
+        );
+      });
+    }
+
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('TWP Softphone'),
+        actions: [
+          // SSE connection indicator
+          Padding(
+            padding: const EdgeInsets.only(right: 8),
+            child: Icon(
+              Icons.circle,
+              size: 12,
+              color: agent.sseConnected ? Colors.green : Colors.red,
+            ),
+          ),
+          IconButton(
+            icon: const Icon(Icons.settings),
+            onPressed: () => Navigator.push(context,
+                MaterialPageRoute(builder: (_) => const SettingsScreen())),
+          ),
+        ],
+      ),
+      floatingActionButton: FloatingActionButton(
+        onPressed: () => _showDialer(context),
+        child: const Icon(Icons.phone),
+      ),
+      body: RefreshIndicator(
+        onRefresh: () => agent.refresh(),
+        child: ListView(
+          padding: const EdgeInsets.all(16),
+          children: [
+            const AgentStatusToggle(),
+            const SizedBox(height: 24),
+            Text('Queues',
+                style: Theme.of(context).textTheme.titleMedium),
+            const SizedBox(height: 8),
+            if (agent.queues.isEmpty)
+              const Card(
+                child: Padding(
+                  padding: EdgeInsets.all(24),
+                  child: Center(child: Text('No queues assigned')),
+                ),
+              )
+            else
+              ...agent.queues.map((q) => Padding(
+                    padding: const EdgeInsets.only(bottom: 8),
+                    child: QueueCard(queue: q),
+                  )),
+          ],
+        ),
+      ),
+    );
+  }
+}

mobile/lib/screens/login_screen.dart

@@ -0,0 +1,165 @@
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:provider/provider.dart';
+import '../providers/auth_provider.dart';
+import 'package:flutter_secure_storage/flutter_secure_storage.dart';
+
+class LoginScreen extends StatefulWidget {
+  const LoginScreen({super.key});
+
+  @override
+  State<LoginScreen> createState() => _LoginScreenState();
+}
+
+class _LoginScreenState extends State<LoginScreen> {
+  final _formKey = GlobalKey<FormState>();
+  final _serverController = TextEditingController();
+  final _usernameController = TextEditingController();
+  final _passwordController = TextEditingController();
+  bool _obscurePassword = true;
+
+  @override
+  void initState() {
+    super.initState();
+    _loadSavedServer();
+  }
+
+  Future<void> _loadSavedServer() async {
+    const storage = FlutterSecureStorage();
+    final saved = await storage.read(key: 'server_url');
+    if (saved != null && mounted) {
+      _serverController.text = saved;
+    }
+  }
+
+  void _submit() {
+    if (!_formKey.currentState!.validate()) return;
+
+    var serverUrl = _serverController.text.trim();
+    if (!serverUrl.startsWith('http')) {
+      serverUrl = 'https://$serverUrl';
+    }
+
+    TextInput.finishAutofillContext();
+    context.read<AuthProvider>().login(
+          serverUrl,
+          _usernameController.text.trim(),
+          _passwordController.text,
+        );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final auth = context.watch<AuthProvider>();
+
+    return Scaffold(
+      body: SafeArea(
+        child: Center(
+          child: SingleChildScrollView(
+            padding: const EdgeInsets.all(24),
+            child: AutofillGroup(
+              child: Form(
+              key: _formKey,
+              child: Column(
+                mainAxisSize: MainAxisSize.min,
+                children: [
+                  Icon(
+                    Icons.phone_in_talk,
+                    size: 64,
+                    color: Theme.of(context).colorScheme.primary,
+                  ),
+                  const SizedBox(height: 16),
+                  Text(
+                    'TWP Softphone',
+                    style: Theme.of(context).textTheme.headlineMedium,
+                  ),
+                  const SizedBox(height: 32),
+                  TextFormField(
+                    controller: _serverController,
+                    decoration: const InputDecoration(
+                      labelText: 'Server URL',
+                      hintText: 'https://your-site.com',
+                      prefixIcon: Icon(Icons.dns),
+                      border: OutlineInputBorder(),
+                    ),
+                    keyboardType: TextInputType.url,
+                    autofillHints: const [AutofillHints.url],
+                    validator: (v) =>
+                        v == null || v.trim().isEmpty ? 'Required' : null,
+                  ),
+                  const SizedBox(height: 16),
+                  TextFormField(
+                    controller: _usernameController,
+                    decoration: const InputDecoration(
+                      labelText: 'Username',
+                      prefixIcon: Icon(Icons.person),
+                      border: OutlineInputBorder(),
+                    ),
+                    autofillHints: const [AutofillHints.username],
+                    validator: (v) =>
+                        v == null || v.trim().isEmpty ? 'Required' : null,
+                  ),
+                  const SizedBox(height: 16),
+                  TextFormField(
+                    controller: _passwordController,
+                    decoration: InputDecoration(
+                      labelText: 'Password',
+                      prefixIcon: const Icon(Icons.lock),
+                      border: const OutlineInputBorder(),
+                      suffixIcon: IconButton(
+                        icon: Icon(_obscurePassword
+                            ? Icons.visibility_off
+                            : Icons.visibility),
+                        onPressed: () =>
+                            setState(() => _obscurePassword = !_obscurePassword),
+                      ),
+                    ),
+                    obscureText: _obscurePassword,
+                    autofillHints: const [AutofillHints.password],
+                    validator: (v) =>
+                        v == null || v.isEmpty ? 'Required' : null,
+                  ),
+                  if (auth.error != null) ...[
+                    const SizedBox(height: 16),
+                    Text(
+                      auth.error!,
+                      style: TextStyle(
+                          color: Theme.of(context).colorScheme.error),
+                    ),
+                  ],
+                  const SizedBox(height: 24),
+                  SizedBox(
+                    width: double.infinity,
+                    height: 48,
+                    child: FilledButton(
+                      onPressed: auth.state == AuthState.authenticating
+                          ? null
+                          : _submit,
+                      child: auth.state == AuthState.authenticating
+                          ? const SizedBox(
+                              width: 24,
+                              height: 24,
+                              child: CircularProgressIndicator(
+                                  strokeWidth: 2, color: Colors.white),
+                            )
+                          : const Text('Connect'),
+                    ),
+                  ),
+                ],
+              ),
+            ),
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+
+  @override
+  void dispose() {
+    _serverController.dispose();
+    _usernameController.dispose();
+    _passwordController.dispose();
+    super.dispose();
+  }
+}

mobile/lib/screens/settings_screen.dart

@@ -0,0 +1,68 @@
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import 'package:flutter_secure_storage/flutter_secure_storage.dart';
+import '../providers/auth_provider.dart';
+
+class SettingsScreen extends StatefulWidget {
+  const SettingsScreen({super.key});
+
+  @override
+  State<SettingsScreen> createState() => _SettingsScreenState();
+}
+
+class _SettingsScreenState extends State<SettingsScreen> {
+  String? _serverUrl;
+
+  @override
+  void initState() {
+    super.initState();
+    _loadServerUrl();
+  }
+
+  Future<void> _loadServerUrl() async {
+    const storage = FlutterSecureStorage();
+    final url = await storage.read(key: 'server_url');
+    if (mounted) setState(() => _serverUrl = url);
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final auth = context.watch<AuthProvider>();
+
+    return Scaffold(
+      appBar: AppBar(title: const Text('Settings')),
+      body: ListView(
+        children: [
+          ListTile(
+            leading: const Icon(Icons.dns),
+            title: const Text('Server'),
+            subtitle: Text(_serverUrl ?? 'Not configured'),
+          ),
+          if (auth.user != null) ...[
+            ListTile(
+              leading: const Icon(Icons.person),
+              title: const Text('User'),
+              subtitle: Text(auth.user!.displayName),
+            ),
+            ListTile(
+              leading: const Icon(Icons.badge),
+              title: const Text('Login'),
+              subtitle: Text(auth.user!.login),
+            ),
+          ],
+          const Divider(),
+          ListTile(
+            leading: const Icon(Icons.logout, color: Colors.red),
+            title: const Text('Logout', style: TextStyle(color: Colors.red)),
+            onTap: () async {
+              await auth.logout();
+              if (context.mounted) {
+                Navigator.of(context).popUntil((route) => route.isFirst);
+              }
+            },
+          ),
+        ],
+      ),
+    );
+  }
+}

mobile/lib/services/api_client.dart

@@ -0,0 +1,85 @@
+import 'package:dio/dio.dart';
+import 'package:flutter_secure_storage/flutter_secure_storage.dart';
+
+class ApiClient {
+  late final Dio dio;
+  final FlutterSecureStorage _storage = const FlutterSecureStorage();
+  VoidCallback? onForceLogout;
+
+  ApiClient() {
+    dio = Dio(BaseOptions(
+      connectTimeout: const Duration(seconds: 15),
+      receiveTimeout: const Duration(seconds: 30),
+    ));
+
+    dio.interceptors.add(InterceptorsWrapper(
+      onRequest: (options, handler) async {
+        final token = await _storage.read(key: 'access_token');
+        if (token != null) {
+          options.headers['Authorization'] = 'Bearer $token';
+        }
+        handler.next(options);
+      },
+      onError: (error, handler) async {
+        if (error.response?.statusCode == 401) {
+          final refreshed = await _tryRefreshToken();
+          if (refreshed) {
+            final opts = error.requestOptions;
+            final token = await _storage.read(key: 'access_token');
+            opts.headers['Authorization'] = 'Bearer $token';
+            try {
+              final response = await dio.fetch(opts);
+              return handler.resolve(response);
+            } catch (e) {
+              return handler.next(error);
+            }
+          } else {
+            onForceLogout?.call();
+          }
+        }
+        handler.next(error);
+      },
+    ));
+  }
+
+  Future<void> setBaseUrl(String serverUrl) async {
+    final url = serverUrl.endsWith('/')
+        ? serverUrl.substring(0, serverUrl.length - 1)
+        : serverUrl;
+    dio.options.baseUrl = '$url/wp-json/twilio-mobile/v1';
+    await _storage.write(key: 'server_url', value: url);
+  }
+
+  Future<void> restoreBaseUrl() async {
+    final url = await _storage.read(key: 'server_url');
+    if (url != null) {
+      dio.options.baseUrl = '$url/wp-json/twilio-mobile/v1';
+    }
+  }
+
+  Future<bool> _tryRefreshToken() async {
+    try {
+      final refreshToken = await _storage.read(key: 'refresh_token');
+      if (refreshToken == null) return false;
+
+      final response = await dio.post(
+        '/auth/refresh',
+        data: {'refresh_token': refreshToken},
+        options: Options(headers: {'Authorization': ''}),
+      );
+
+      if (response.statusCode == 200 && response.data['success'] == true) {
+        await _storage.write(
+            key: 'access_token', value: response.data['access_token']);
+        if (response.data['refresh_token'] != null) {
+          await _storage.write(
+              key: 'refresh_token', value: response.data['refresh_token']);
+        }
+        return true;
+      }
+    } catch (_) {}
+    return false;
+  }
+}
+
+typedef VoidCallback = void Function();

mobile/lib/services/auth_service.dart

@@ -0,0 +1,95 @@
+import 'dart:async';
+import 'package:flutter_secure_storage/flutter_secure_storage.dart';
+import '../models/user.dart';
+import 'api_client.dart';
+
+class AuthService {
+  final ApiClient _api;
+  final FlutterSecureStorage _storage = const FlutterSecureStorage();
+  Timer? _refreshTimer;
+
+  AuthService(this._api);
+
+  Future<User> login(String serverUrl, String username, String password,
+      {String? fcmToken}) async {
+    await _api.setBaseUrl(serverUrl);
+
+    final response = await _api.dio.post('/auth/login', data: {
+      'username': username,
+      'password': password,
+      if (fcmToken != null) 'fcm_token': fcmToken,
+    });
+
+    final data = response.data;
+    if (data['success'] != true) {
+      throw Exception(data['message'] ?? 'Login failed');
+    }
+
+    await _storage.write(key: 'access_token', value: data['access_token']);
+    await _storage.write(key: 'refresh_token', value: data['refresh_token']);
+
+    _scheduleRefresh(data['expires_in'] as int? ?? 3600);
+
+    return User.fromJson(data['user']);
+  }
+
+  Future<bool> tryRestoreSession() async {
+    final token = await _storage.read(key: 'access_token');
+    if (token == null) return false;
+
+    await _api.restoreBaseUrl();
+    if (_api.dio.options.baseUrl.isEmpty) return false;
+
+    try {
+      final response = await _api.dio.get('/agent/status');
+      return response.statusCode == 200;
+    } catch (_) {
+      return false;
+    }
+  }
+
+  Future<void> refreshToken() async {
+    final refreshToken = await _storage.read(key: 'refresh_token');
+    if (refreshToken == null) throw Exception('No refresh token');
+
+    final response = await _api.dio.post('/auth/refresh', data: {
+      'refresh_token': refreshToken,
+    });
+
+    final data = response.data;
+    if (data['success'] != true) {
+      throw Exception('Token refresh failed');
+    }
+
+    await _storage.write(key: 'access_token', value: data['access_token']);
+    if (data['refresh_token'] != null) {
+      await _storage.write(key: 'refresh_token', value: data['refresh_token']);
+    }
+
+    _scheduleRefresh(data['expires_in'] as int? ?? 3600);
+  }
+
+  void _scheduleRefresh(int expiresInSeconds) {
+    _refreshTimer?.cancel();
+    // Refresh 2 minutes before expiry
+    final refreshIn = Duration(seconds: expiresInSeconds - 120);
+    if (refreshIn.isNegative) return;
+    _refreshTimer = Timer(refreshIn, () async {
+      try {
+        await refreshToken();
+      } catch (_) {}
+    });
+  }
+
+  Future<void> logout() async {
+    _refreshTimer?.cancel();
+    try {
+      await _api.dio.post('/auth/logout');
+    } catch (_) {}
+    await _storage.deleteAll();
+  }
+
+  void dispose() {
+    _refreshTimer?.cancel();
+  }
+}

mobile/lib/services/push_notification_service.dart

@@ -0,0 +1,78 @@
+import 'package:firebase_core/firebase_core.dart';
+import 'package:firebase_messaging/firebase_messaging.dart';
+import 'package:flutter_local_notifications/flutter_local_notifications.dart';
+import 'api_client.dart';
+
+@pragma('vm:entry-point')
+Future<void> _firebaseMessagingBackgroundHandler(RemoteMessage message) async {
+  await Firebase.initializeApp();
+  // VoIP pushes are handled natively by twilio_voice plugin.
+  // Other data messages can show a local notification if needed.
+}
+
+class PushNotificationService {
+  final ApiClient _api;
+  final FirebaseMessaging _messaging = FirebaseMessaging.instance;
+  final FlutterLocalNotificationsPlugin _localNotifications =
+      FlutterLocalNotificationsPlugin();
+
+  PushNotificationService(this._api);
+
+  Future<void> initialize() async {
+    FirebaseMessaging.onBackgroundMessage(_firebaseMessagingBackgroundHandler);
+
+    await _messaging.requestPermission(
+      alert: true,
+      badge: true,
+      sound: true,
+      criticalAlert: true,
+    );
+
+    // Initialize local notifications
+    const androidSettings =
+        AndroidInitializationSettings('@mipmap/ic_launcher');
+    const initSettings = InitializationSettings(android: androidSettings);
+    await _localNotifications.initialize(initSettings);
+
+    // Get and register FCM token
+    final token = await _messaging.getToken();
+    if (token != null) {
+      await _registerToken(token);
+    }
+
+    // Listen for token refresh
+    _messaging.onTokenRefresh.listen(_registerToken);
+
+    // Handle foreground messages (non-VoIP)
+    FirebaseMessaging.onMessage.listen(_handleForegroundMessage);
+  }
+
+  Future<void> _registerToken(String token) async {
+    try {
+      await _api.dio.post('/fcm/register', data: {'fcm_token': token});
+    } catch (_) {}
+  }
+
+  void _handleForegroundMessage(RemoteMessage message) {
+    final data = message.data;
+    final type = data['type'];
+
+    // VoIP incoming_call is handled by twilio_voice natively
+    if (type == 'incoming_call') return;
+
+    // Show local notification for other types (missed call, queue alert, etc.)
+    _localNotifications.show(
+      message.hashCode,
+      data['title'] ?? 'TWP Softphone',
+      data['body'] ?? '',
+      const NotificationDetails(
+        android: AndroidNotificationDetails(
+          'twp_general',
+          'General Notifications',
+          importance: Importance.high,
+          priority: Priority.high,
+        ),
+      ),
+    );
+  }
+}

mobile/lib/services/sse_service.dart

@@ -0,0 +1,119 @@
+import 'dart:async';
+import 'dart:convert';
+import 'dart:math';
+import 'package:dio/dio.dart';
+import 'package:flutter_secure_storage/flutter_secure_storage.dart';
+import '../config/app_config.dart';
+import 'api_client.dart';
+
+class SseEvent {
+  final String event;
+  final Map<String, dynamic> data;
+
+  SseEvent({required this.event, required this.data});
+}
+
+class SseService {
+  final ApiClient _api;
+  final FlutterSecureStorage _storage = const FlutterSecureStorage();
+  final StreamController<SseEvent> _eventController =
+      StreamController<SseEvent>.broadcast();
+  final StreamController<bool> _connectionController =
+      StreamController<bool>.broadcast();
+
+  CancelToken? _cancelToken;
+  Timer? _reconnectTimer;
+  int _reconnectAttempt = 0;
+  bool _shouldReconnect = true;
+
+  Stream<SseEvent> get events => _eventController.stream;
+  Stream<bool> get connectionState => _connectionController.stream;
+
+  SseService(this._api);
+
+  Future<void> connect() async {
+    _shouldReconnect = true;
+    _reconnectAttempt = 0;
+    await _doConnect();
+  }
+
+  Future<void> _doConnect() async {
+    _cancelToken?.cancel();
+    _cancelToken = CancelToken();
+
+    try {
+      final token = await _storage.read(key: 'access_token');
+      final response = await _api.dio.get(
+        '/stream/events',
+        options: Options(
+          headers: {'Authorization': 'Bearer $token'},
+          responseType: ResponseType.stream,
+        ),
+        cancelToken: _cancelToken,
+      );
+
+      _connectionController.add(true);
+      _reconnectAttempt = 0;
+
+      final stream = response.data.stream as Stream<List<int>>;
+      String buffer = '';
+
+      await for (final chunk in stream) {
+        buffer += utf8.decode(chunk);
+        final lines = buffer.split('\n');
+        buffer = lines.removeLast(); // keep incomplete line in buffer
+
+        String? eventName;
+        String? dataStr;
+
+        for (final line in lines) {
+          if (line.startsWith('event:')) {
+            eventName = line.substring(6).trim();
+          } else if (line.startsWith('data:')) {
+            dataStr = line.substring(5).trim();
+          } else if (line.isEmpty && eventName != null && dataStr != null) {
+            try {
+              final data = jsonDecode(dataStr) as Map<String, dynamic>;
+              _eventController.add(SseEvent(event: eventName, data: data));
+            } catch (_) {}
+            eventName = null;
+            dataStr = null;
+          }
+        }
+      }
+    } catch (e) {
+      if (e is DioException && e.type == DioExceptionType.cancel) return;
+      _connectionController.add(false);
+    }
+
+    if (_shouldReconnect) {
+      _scheduleReconnect();
+    }
+  }
+
+  void _scheduleReconnect() {
+    _reconnectTimer?.cancel();
+    final delay = Duration(
+      milliseconds: min(
+        AppConfig.sseMaxReconnect.inMilliseconds,
+        AppConfig.sseReconnectBase.inMilliseconds *
+            pow(2, _reconnectAttempt).toInt(),
+      ),
+    );
+    _reconnectAttempt++;
+    _reconnectTimer = Timer(delay, _doConnect);
+  }
+
+  void disconnect() {
+    _shouldReconnect = false;
+    _reconnectTimer?.cancel();
+    _cancelToken?.cancel();
+    _connectionController.add(false);
+  }
+
+  void dispose() {
+    disconnect();
+    _eventController.close();
+    _connectionController.close();
+  }
+}

mobile/lib/services/voice_service.dart

@@ -0,0 +1,89 @@
+import 'dart:async';
+import 'package:twilio_voice/twilio_voice.dart';
+import 'api_client.dart';
+
+class VoiceService {
+  final ApiClient _api;
+  Timer? _tokenRefreshTimer;
+  String? _identity;
+
+  final StreamController<CallEvent> _callEventController =
+      StreamController<CallEvent>.broadcast();
+  Stream<CallEvent> get callEvents => _callEventController.stream;
+
+  VoiceService(this._api);
+
+  Future<void> initialize() async {
+    await _fetchAndRegisterToken();
+
+    TwilioVoice.instance.callEventsListener.listen((event) {
+      _callEventController.add(event);
+    });
+
+    // Refresh token every 50 minutes
+    _tokenRefreshTimer?.cancel();
+    _tokenRefreshTimer = Timer.periodic(
+      const Duration(minutes: 50),
+      (_) => _fetchAndRegisterToken(),
+    );
+  }
+
+  Future<void> _fetchAndRegisterToken() async {
+    try {
+      final response = await _api.dio.get('/voice/token');
+      final data = response.data;
+      final token = data['token'] as String;
+      _identity = data['identity'] as String;
+      await TwilioVoice.instance.setTokens(accessToken: token);
+    } catch (e) {
+      // Token fetch failed - will retry on next interval
+    }
+  }
+
+  String? get identity => _identity;
+
+  Future<void> answer() async {
+    await TwilioVoice.instance.call.answer();
+  }
+
+  Future<void> reject() async {
+    await TwilioVoice.instance.call.hangUp();
+  }
+
+  Future<void> hangUp() async {
+    await TwilioVoice.instance.call.hangUp();
+  }
+
+  Future<void> toggleMute(bool mute) async {
+    await TwilioVoice.instance.call.toggleMute(mute);
+  }
+
+  Future<void> toggleSpeaker(bool speaker) async {
+    await TwilioVoice.instance.call.toggleSpeaker(speaker);
+  }
+
+  Future<bool> makeCall(String to) async {
+    return await TwilioVoice.instance.call.place(to: to, from: _identity ?? '') ?? false;
+  }
+
+  Future<void> sendDigits(String digits) async {
+    await TwilioVoice.instance.call.sendDigits(digits);
+  }
+
+  Future<void> holdCall(String callSid) async {
+    await _api.dio.post('/calls/$callSid/hold');
+  }
+
+  Future<void> unholdCall(String callSid) async {
+    await _api.dio.post('/calls/$callSid/unhold');
+  }
+
+  Future<void> transferCall(String callSid, String target) async {
+    await _api.dio.post('/calls/$callSid/transfer', data: {'target': target});
+  }
+
+  void dispose() {
+    _tokenRefreshTimer?.cancel();
+    _callEventController.close();
+  }
+}

mobile/lib/widgets/agent_status_toggle.dart

@@ -0,0 +1,51 @@
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import '../models/agent_status.dart';
+import '../providers/agent_provider.dart';
+
+class AgentStatusToggle extends StatelessWidget {
+  const AgentStatusToggle({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    final agent = context.watch<AgentProvider>();
+    final current = agent.status?.status ?? AgentStatusValue.offline;
+
+    return Card(
+      child: Padding(
+        padding: const EdgeInsets.all(16),
+        child: Column(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            Text('Agent Status',
+                style: Theme.of(context).textTheme.titleSmall),
+            const SizedBox(height: 12),
+            SegmentedButton<AgentStatusValue>(
+              segments: const [
+                ButtonSegment(
+                  value: AgentStatusValue.available,
+                  label: Text('Available'),
+                  icon: Icon(Icons.circle, color: Colors.green, size: 12),
+                ),
+                ButtonSegment(
+                  value: AgentStatusValue.busy,
+                  label: Text('Busy'),
+                  icon: Icon(Icons.circle, color: Colors.orange, size: 12),
+                ),
+                ButtonSegment(
+                  value: AgentStatusValue.offline,
+                  label: Text('Offline'),
+                  icon: Icon(Icons.circle, color: Colors.red, size: 12),
+                ),
+              ],
+              selected: {current},
+              onSelectionChanged: (selection) {
+                agent.updateStatus(selection.first);
+              },
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

mobile/lib/widgets/call_controls.dart

@@ -0,0 +1,118 @@
+import 'package:flutter/material.dart';
+import '../models/call_info.dart';
+
+class CallControls extends StatelessWidget {
+  final CallInfo callInfo;
+  final VoidCallback onMute;
+  final VoidCallback onSpeaker;
+  final VoidCallback onHold;
+  final VoidCallback onDialpad;
+  final VoidCallback onTransfer;
+  final VoidCallback onHangUp;
+
+  const CallControls({
+    super.key,
+    required this.callInfo,
+    required this.onMute,
+    required this.onSpeaker,
+    required this.onHold,
+    required this.onDialpad,
+    required this.onTransfer,
+    required this.onHangUp,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return Padding(
+      padding: const EdgeInsets.symmetric(horizontal: 24),
+      child: Column(
+        children: [
+          Row(
+            mainAxisAlignment: MainAxisAlignment.spaceEvenly,
+            children: [
+              _ControlButton(
+                icon: callInfo.isMuted ? Icons.mic_off : Icons.mic,
+                label: 'Mute',
+                active: callInfo.isMuted,
+                onTap: onMute,
+              ),
+              _ControlButton(
+                icon: callInfo.isSpeakerOn
+                    ? Icons.volume_up
+                    : Icons.volume_down,
+                label: 'Speaker',
+                active: callInfo.isSpeakerOn,
+                onTap: onSpeaker,
+              ),
+              _ControlButton(
+                icon: callInfo.isOnHold ? Icons.play_arrow : Icons.pause,
+                label: callInfo.isOnHold ? 'Resume' : 'Hold',
+                active: callInfo.isOnHold,
+                onTap: onHold,
+              ),
+            ],
+          ),
+          const SizedBox(height: 16),
+          Row(
+            mainAxisAlignment: MainAxisAlignment.spaceEvenly,
+            children: [
+              _ControlButton(
+                icon: Icons.dialpad,
+                label: 'Dialpad',
+                onTap: onDialpad,
+              ),
+              _ControlButton(
+                icon: Icons.phone_forwarded,
+                label: 'Transfer',
+                onTap: onTransfer,
+              ),
+            ],
+          ),
+          const SizedBox(height: 24),
+          FloatingActionButton.large(
+            onPressed: onHangUp,
+            backgroundColor: Colors.red,
+            child: const Icon(Icons.call_end, color: Colors.white, size: 36),
+          ),
+        ],
+      ),
+    );
+  }
+}
+
+class _ControlButton extends StatelessWidget {
+  final IconData icon;
+  final String label;
+  final bool active;
+  final VoidCallback onTap;
+
+  const _ControlButton({
+    required this.icon,
+    required this.label,
+    this.active = false,
+    required this.onTap,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return Column(
+      mainAxisSize: MainAxisSize.min,
+      children: [
+        IconButton.filled(
+          onPressed: onTap,
+          icon: Icon(icon),
+          style: IconButton.styleFrom(
+            backgroundColor: active
+                ? Theme.of(context).colorScheme.primaryContainer
+                : Theme.of(context).colorScheme.surfaceContainerHighest,
+            foregroundColor: active
+                ? Theme.of(context).colorScheme.primary
+                : Theme.of(context).colorScheme.onSurface,
+          ),
+        ),
+        const SizedBox(height: 4),
+        Text(label, style: Theme.of(context).textTheme.labelSmall),
+      ],
+    );
+  }
+}

mobile/lib/widgets/dialpad.dart

@@ -0,0 +1,55 @@
+import 'package:flutter/material.dart';
+
+class Dialpad extends StatelessWidget {
+  final void Function(String digit) onDigit;
+  final VoidCallback onClose;
+
+  const Dialpad({super.key, required this.onDigit, required this.onClose});
+
+  static const _keys = [
+    ['1', '2', '3'],
+    ['4', '5', '6'],
+    ['7', '8', '9'],
+    ['*', '0', '#'],
+  ];
+
+  @override
+  Widget build(BuildContext context) {
+    return Padding(
+      padding: const EdgeInsets.symmetric(horizontal: 48),
+      child: Column(
+        mainAxisSize: MainAxisSize.min,
+        children: [
+          ..._keys.map((row) => Row(
+                mainAxisAlignment: MainAxisAlignment.spaceEvenly,
+                children: row
+                    .map((key) => Padding(
+                          padding: const EdgeInsets.all(4),
+                          child: InkWell(
+                            onTap: () => onDigit(key),
+                            borderRadius: BorderRadius.circular(40),
+                            child: Container(
+                              width: 64,
+                              height: 64,
+                              alignment: Alignment.center,
+                              child: Text(
+                                key,
+                                style: Theme.of(context)
+                                    .textTheme
+                                    .headlineSmall,
+                              ),
+                            ),
+                          ),
+                        ))
+                    .toList(),
+              )),
+          const SizedBox(height: 8),
+          TextButton(
+            onPressed: onClose,
+            child: const Text('Close'),
+          ),
+        ],
+      ),
+    );
+  }
+}

mobile/lib/widgets/queue_card.dart

@@ -0,0 +1,37 @@
+import 'package:flutter/material.dart';
+import '../models/queue_state.dart';
+
+class QueueCard extends StatelessWidget {
+  final QueueInfo queue;
+
+  const QueueCard({super.key, required this.queue});
+
+  @override
+  Widget build(BuildContext context) {
+    return Card(
+      child: ListTile(
+        leading: CircleAvatar(
+          backgroundColor: queue.waitingCount > 0
+              ? Colors.orange.shade100
+              : Colors.green.shade100,
+          child: Text(
+            '${queue.waitingCount}',
+            style: TextStyle(
+              color: queue.waitingCount > 0 ? Colors.orange : Colors.green,
+              fontWeight: FontWeight.bold,
+            ),
+          ),
+        ),
+        title: Text(queue.name),
+        subtitle: Text(
+          queue.waitingCount > 0
+              ? '${queue.waitingCount} waiting'
+              : 'No calls waiting',
+        ),
+        trailing: queue.extension != null
+            ? Chip(label: Text('Ext ${queue.extension}'))
+            : null,
+      ),
+    );
+  }
+}

mobile/pubspec.lock

@@ -0,0 +1,890 @@
+# Generated by pub
+# See https://dart.dev/tools/pub/glossary#lockfile
+packages:
+  _fe_analyzer_shared:
+    dependency: transitive
+    description:
+      name: _fe_analyzer_shared
+      sha256: "8d7ff3948166b8ec5da0fbb5962000926b8e02f2ed9b3e51d1738905fbd4c98d"
+      url: "https://pub.dev"
+    source: hosted
+    version: "93.0.0"
+  _flutterfire_internals:
+    dependency: transitive
+    description:
+      name: _flutterfire_internals
+      sha256: ff0a84a2734d9e1089f8aedd5c0af0061b82fb94e95260d943404e0ef2134b11
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.3.59"
+  analyzer:
+    dependency: transitive
+    description:
+      name: analyzer
+      sha256: de7148ed2fcec579b19f122c1800933dfa028f6d9fd38a152b04b1516cec120b
+      url: "https://pub.dev"
+    source: hosted
+    version: "10.0.1"
+  args:
+    dependency: transitive
+    description:
+      name: args
+      sha256: d0481093c50b1da8910eb0bb301626d4d8eb7284aa739614d2b394ee09e3ea04
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.7.0"
+  async:
+    dependency: transitive
+    description:
+      name: async
+      sha256: "758e6d74e971c3e5aceb4110bfd6698efc7f501675bcfe0c775459a8140750eb"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.13.0"
+  boolean_selector:
+    dependency: transitive
+    description:
+      name: boolean_selector
+      sha256: "8aab1771e1243a5063b8b0ff68042d67334e3feab9e95b9490f9a6ebf73b42ea"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.2"
+  build:
+    dependency: transitive
+    description:
+      name: build
+      sha256: "275bf6bb2a00a9852c28d4e0b410da1d833a734d57d39d44f94bfc895a484ec3"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.0.4"
+  build_config:
+    dependency: transitive
+    description:
+      name: build_config
+      sha256: "4070d2a59f8eec34c97c86ceb44403834899075f66e8a9d59706f8e7834f6f71"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.3.0"
+  build_daemon:
+    dependency: transitive
+    description:
+      name: build_daemon
+      sha256: bf05f6e12cfea92d3c09308d7bcdab1906cd8a179b023269eed00c071004b957
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.1.1"
+  build_runner:
+    dependency: "direct dev"
+    description:
+      name: build_runner
+      sha256: "7981eb922842c77033026eb4341d5af651562008cdb116bdfa31fc46516b6462"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.12.2"
+  built_collection:
+    dependency: transitive
+    description:
+      name: built_collection
+      sha256: "376e3dd27b51ea877c28d525560790aee2e6fbb5f20e2f85d5081027d94e2100"
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.1.1"
+  built_value:
+    dependency: transitive
+    description:
+      name: built_value
+      sha256: "6ae8a6435a8c6520c7077b107e77f1fb4ba7009633259a4d49a8afd8e7efc5e9"
+      url: "https://pub.dev"
+    source: hosted
+    version: "8.12.4"
+  characters:
+    dependency: transitive
+    description:
+      name: characters
+      sha256: faf38497bda5ead2a8c7615f4f7939df04333478bf32e4173fcb06d428b5716b
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.4.1"
+  checked_yaml:
+    dependency: transitive
+    description:
+      name: checked_yaml
+      sha256: "959525d3162f249993882720d52b7e0c833978df229be20702b33d48d91de70f"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.4"
+  clock:
+    dependency: transitive
+    description:
+      name: clock
+      sha256: fddb70d9b5277016c77a80201021d40a2247104d9f4aa7bab7157b7e3f05b84b
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.2"
+  code_assets:
+    dependency: transitive
+    description:
+      name: code_assets
+      sha256: "83ccdaa064c980b5596c35dd64a8d3ecc68620174ab9b90b6343b753aa721687"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.0"
+  code_builder:
+    dependency: transitive
+    description:
+      name: code_builder
+      sha256: "6a6cab2ba4680d6423f34a9b972a4c9a94ebe1b62ecec4e1a1f2cba91fd1319d"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.11.1"
+  collection:
+    dependency: transitive
+    description:
+      name: collection
+      sha256: "2f5709ae4d3d59dd8f7cd309b4e023046b57d8a6c82130785d2b0e5868084e76"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.19.1"
+  convert:
+    dependency: transitive
+    description:
+      name: convert
+      sha256: b30acd5944035672bc15c6b7a8b47d773e41e2f17de064350988c5d02adb1c68
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.2"
+  crypto:
+    dependency: transitive
+    description:
+      name: crypto
+      sha256: c8ea0233063ba03258fbcf2ca4d6dadfefe14f02fab57702265467a19f27fadf
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.7"
+  dart_style:
+    dependency: transitive
+    description:
+      name: dart_style
+      sha256: "6f6b30cba0301e7b38f32bdc9a6bdae6f5921a55f0a1eb9450e1e6515645dbb2"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.6"
+  dbus:
+    dependency: transitive
+    description:
+      name: dbus
+      sha256: d0c98dcd4f5169878b6cf8f6e0a52403a9dff371a3e2f019697accbf6f44a270
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.7.12"
+  dio:
+    dependency: "direct main"
+    description:
+      name: dio
+      sha256: aff32c08f92787a557dd5c0145ac91536481831a01b4648136373cddb0e64f8c
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.9.2"
+  dio_web_adapter:
+    dependency: transitive
+    description:
+      name: dio_web_adapter
+      sha256: "2f9e64323a7c3c7ef69567d5c800424a11f8337b8b228bad02524c9fb3c1f340"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.2"
+  fake_async:
+    dependency: transitive
+    description:
+      name: fake_async
+      sha256: "5368f224a74523e8d2e7399ea1638b37aecfca824a3cc4dfdf77bf1fa905ac44"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.3.3"
+  ffi:
+    dependency: transitive
+    description:
+      name: ffi
+      sha256: "6d7fd89431262d8f3125e81b50d3847a091d846eafcd4fdb88dd06f36d705a45"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.0"
+  file:
+    dependency: transitive
+    description:
+      name: file
+      sha256: a3b4f84adafef897088c160faf7dfffb7696046cb13ae90b508c2cbc95d3b8d4
+      url: "https://pub.dev"
+    source: hosted
+    version: "7.0.1"
+  firebase_core:
+    dependency: "direct main"
+    description:
+      name: firebase_core
+      sha256: "7be63a3f841fc9663342f7f3a011a42aef6a61066943c90b1c434d79d5c995c5"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.15.2"
+  firebase_core_platform_interface:
+    dependency: transitive
+    description:
+      name: firebase_core_platform_interface
+      sha256: cccb4f572325dc14904c02fcc7db6323ad62ba02536833dddb5c02cac7341c64
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.0.2"
+  firebase_core_web:
+    dependency: transitive
+    description:
+      name: firebase_core_web
+      sha256: "0ed0dc292e8f9ac50992e2394e9d336a0275b6ae400d64163fdf0a8a8b556c37"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.24.1"
+  firebase_messaging:
+    dependency: "direct main"
+    description:
+      name: firebase_messaging
+      sha256: "60be38574f8b5658e2f22b7e311ff2064bea835c248424a383783464e8e02fcc"
+      url: "https://pub.dev"
+    source: hosted
+    version: "15.2.10"
+  firebase_messaging_platform_interface:
+    dependency: transitive
+    description:
+      name: firebase_messaging_platform_interface
+      sha256: "685e1771b3d1f9c8502771ccc9f91485b376ffe16d553533f335b9183ea99754"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.6.10"
+  firebase_messaging_web:
+    dependency: transitive
+    description:
+      name: firebase_messaging_web
+      sha256: "0d1be17bc89ed3ff5001789c92df678b2e963a51b6fa2bdb467532cc9dbed390"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.10.10"
+  fixnum:
+    dependency: transitive
+    description:
+      name: fixnum
+      sha256: b6dc7065e46c974bc7c5f143080a6764ec7a4be6da1285ececdc37be96de53be
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.1"
+  flutter:
+    dependency: "direct main"
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  flutter_lints:
+    dependency: "direct dev"
+    description:
+      name: flutter_lints
+      sha256: "3f41d009ba7172d5ff9be5f6e6e6abb4300e263aab8866d2a0842ed2a70f8f0c"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.0.0"
+  flutter_local_notifications:
+    dependency: "direct main"
+    description:
+      name: flutter_local_notifications
+      sha256: "674173fd3c9eda9d4c8528da2ce0ea69f161577495a9cc835a2a4ecd7eadeb35"
+      url: "https://pub.dev"
+    source: hosted
+    version: "17.2.4"
+  flutter_local_notifications_linux:
+    dependency: transitive
+    description:
+      name: flutter_local_notifications_linux
+      sha256: c49bd06165cad9beeb79090b18cd1eb0296f4bf4b23b84426e37dd7c027fc3af
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.0.1"
+  flutter_local_notifications_platform_interface:
+    dependency: transitive
+    description:
+      name: flutter_local_notifications_platform_interface
+      sha256: "85f8d07fe708c1bdcf45037f2c0109753b26ae077e9d9e899d55971711a4ea66"
+      url: "https://pub.dev"
+    source: hosted
+    version: "7.2.0"
+  flutter_secure_storage:
+    dependency: "direct main"
+    description:
+      name: flutter_secure_storage
+      sha256: da922f2aab2d733db7e011a6bcc4a825b844892d4edd6df83ff156b09a9b2e40
+      url: "https://pub.dev"
+    source: hosted
+    version: "10.0.0"
+  flutter_secure_storage_darwin:
+    dependency: transitive
+    description:
+      name: flutter_secure_storage_darwin
+      sha256: "8878c25136a79def1668c75985e8e193d9d7d095453ec28730da0315dc69aee3"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.2.0"
+  flutter_secure_storage_linux:
+    dependency: transitive
+    description:
+      name: flutter_secure_storage_linux
+      sha256: "2b5c76dce569ab752d55a1cee6a2242bcc11fdba927078fb88c503f150767cda"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.0"
+  flutter_secure_storage_platform_interface:
+    dependency: transitive
+    description:
+      name: flutter_secure_storage_platform_interface
+      sha256: "8ceea1223bee3c6ac1a22dabd8feefc550e4729b3675de4b5900f55afcb435d6"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.1"
+  flutter_secure_storage_web:
+    dependency: transitive
+    description:
+      name: flutter_secure_storage_web
+      sha256: "6a1137df62b84b54261dca582c1c09ea72f4f9a4b2fcee21b025964132d5d0c3"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.0"
+  flutter_secure_storage_windows:
+    dependency: transitive
+    description:
+      name: flutter_secure_storage_windows
+      sha256: "3b7c8e068875dfd46719ff57c90d8c459c87f2302ed6b00ff006b3c9fcad1613"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.1.0"
+  flutter_test:
+    dependency: "direct dev"
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  flutter_web_plugins:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  glob:
+    dependency: transitive
+    description:
+      name: glob
+      sha256: c3f1ee72c96f8f78935e18aa8cecced9ab132419e8625dc187e1c2408efc20de
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.3"
+  graphs:
+    dependency: transitive
+    description:
+      name: graphs
+      sha256: "741bbf84165310a68ff28fe9e727332eef1407342fca52759cb21ad8177bb8d0"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.3.2"
+  hooks:
+    dependency: transitive
+    description:
+      name: hooks
+      sha256: e79ed1e8e1929bc6ecb6ec85f0cb519c887aa5b423705ded0d0f2d9226def388
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.2"
+  http_multi_server:
+    dependency: transitive
+    description:
+      name: http_multi_server
+      sha256: aa6199f908078bb1c5efb8d8638d4ae191aac11b311132c3ef48ce352fb52ef8
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.2.2"
+  http_parser:
+    dependency: transitive
+    description:
+      name: http_parser
+      sha256: "178d74305e7866013777bab2c3d8726205dc5a4dd935297175b19a23a2e66571"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.1.2"
+  io:
+    dependency: transitive
+    description:
+      name: io
+      sha256: dfd5a80599cf0165756e3181807ed3e77daf6dd4137caaad72d0b7931597650b
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.5"
+  js:
+    dependency: transitive
+    description:
+      name: js
+      sha256: "53385261521cc4a0c4658fd0ad07a7d14591cf8fc33abbceae306ddb974888dc"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.7.2"
+  js_notifications:
+    dependency: transitive
+    description:
+      name: js_notifications
+      sha256: "980280649b29d618669866bdbf99e4a813009033101a434652d231eaf976c975"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.0.5"
+  json_annotation:
+    dependency: "direct main"
+    description:
+      name: json_annotation
+      sha256: cb09e7dac6210041fad964ed7fbee004f14258b4eca4040f72d1234062ace4c8
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.11.0"
+  json_serializable:
+    dependency: "direct dev"
+    description:
+      name: json_serializable
+      sha256: "44729f5c45748e6748f6b9a57ab8f7e4336edc8ae41fc295070e3814e616a6c0"
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.13.0"
+  leak_tracker:
+    dependency: transitive
+    description:
+      name: leak_tracker
+      sha256: "33e2e26bdd85a0112ec15400c8cbffea70d0f9c3407491f672a2fad47915e2de"
+      url: "https://pub.dev"
+    source: hosted
+    version: "11.0.2"
+  leak_tracker_flutter_testing:
+    dependency: transitive
+    description:
+      name: leak_tracker_flutter_testing
+      sha256: "1dbc140bb5a23c75ea9c4811222756104fbcd1a27173f0c34ca01e16bea473c1"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.10"
+  leak_tracker_testing:
+    dependency: transitive
+    description:
+      name: leak_tracker_testing
+      sha256: "8d5a2d49f4a66b49744b23b018848400d23e54caf9463f4eb20df3eb8acb2eb1"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.2"
+  lints:
+    dependency: transitive
+    description:
+      name: lints
+      sha256: "976c774dd944a42e83e2467f4cc670daef7eed6295b10b36ae8c85bcbf828235"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.0.0"
+  logging:
+    dependency: transitive
+    description:
+      name: logging
+      sha256: c8245ada5f1717ed44271ed1c26b8ce85ca3228fd2ffdb75468ab01979309d61
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.3.0"
+  matcher:
+    dependency: transitive
+    description:
+      name: matcher
+      sha256: dc0b7dc7651697ea4ff3e69ef44b0407ea32c487a39fff6a4004fa585e901861
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.12.19"
+  material_color_utilities:
+    dependency: transitive
+    description:
+      name: material_color_utilities
+      sha256: "9c337007e82b1889149c82ed242ed1cb24a66044e30979c44912381e9be4c48b"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.13.0"
+  meta:
+    dependency: transitive
+    description:
+      name: meta
+      sha256: "23f08335362185a5ea2ad3a4e597f1375e78bce8a040df5c600c8d3552ef2394"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.17.0"
+  mime:
+    dependency: transitive
+    description:
+      name: mime
+      sha256: "41a20518f0cb1256669420fdba0cd90d21561e560ac240f26ef8322e45bb7ed6"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.0"
+  native_toolchain_c:
+    dependency: transitive
+    description:
+      name: native_toolchain_c
+      sha256: "92b2ca62c8bd2b8d2f267cdfccf9bfbdb7322f778f8f91b3ce5b5cda23a3899f"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.17.5"
+  nested:
+    dependency: transitive
+    description:
+      name: nested
+      sha256: "03bac4c528c64c95c722ec99280375a6f2fc708eec17c7b3f07253b626cd2a20"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.0"
+  objective_c:
+    dependency: transitive
+    description:
+      name: objective_c
+      sha256: "100a1c87616ab6ed41ec263b083c0ef3261ee6cd1dc3b0f35f8ddfa4f996fe52"
+      url: "https://pub.dev"
+    source: hosted
+    version: "9.3.0"
+  package_config:
+    dependency: transitive
+    description:
+      name: package_config
+      sha256: f096c55ebb7deb7e384101542bfba8c52696c1b56fca2eb62827989ef2353bbc
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.0"
+  path:
+    dependency: transitive
+    description:
+      name: path
+      sha256: "75cca69d1490965be98c73ceaea117e8a04dd21217b37b292c9ddbec0d955bc5"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.9.1"
+  path_provider:
+    dependency: transitive
+    description:
+      name: path_provider
+      sha256: "50c5dd5b6e1aaf6fb3a78b33f6aa3afca52bf903a8a5298f53101fdaee55bbcd"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.5"
+  path_provider_android:
+    dependency: transitive
+    description:
+      name: path_provider_android
+      sha256: f2c65e21139ce2c3dad46922be8272bb5963516045659e71bb16e151c93b580e
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.22"
+  path_provider_foundation:
+    dependency: transitive
+    description:
+      name: path_provider_foundation
+      sha256: "2a376b7d6392d80cd3705782d2caa734ca4727776db0b6ec36ef3f1855197699"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.6.0"
+  path_provider_linux:
+    dependency: transitive
+    description:
+      name: path_provider_linux
+      sha256: f7a1fe3a634fe7734c8d3f2766ad746ae2a2884abe22e241a8b301bf5cac3279
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.1"
+  path_provider_platform_interface:
+    dependency: transitive
+    description:
+      name: path_provider_platform_interface
+      sha256: "88f5779f72ba699763fa3a3b06aa4bf6de76c8e5de842cf6f29e2e06476c2334"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.2"
+  path_provider_windows:
+    dependency: transitive
+    description:
+      name: path_provider_windows
+      sha256: bd6f00dbd873bfb70d0761682da2b3a2c2fccc2b9e84c495821639601d81afe7
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.3.0"
+  petitparser:
+    dependency: transitive
+    description:
+      name: petitparser
+      sha256: "91bd59303e9f769f108f8df05e371341b15d59e995e6806aefab827b58336675"
+      url: "https://pub.dev"
+    source: hosted
+    version: "7.0.2"
+  platform:
+    dependency: transitive
+    description:
+      name: platform
+      sha256: "5d6b1b0036a5f331ebc77c850ebc8506cbc1e9416c27e59b439f917a902a4984"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.6"
+  plugin_platform_interface:
+    dependency: transitive
+    description:
+      name: plugin_platform_interface
+      sha256: "4820fbfdb9478b1ebae27888254d445073732dae3d6ea81f0b7e06d5dedc3f02"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.8"
+  pool:
+    dependency: transitive
+    description:
+      name: pool
+      sha256: "978783255c543aa3586a1b3c21f6e9d720eb315376a915872c61ef8b5c20177d"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.5.2"
+  provider:
+    dependency: "direct main"
+    description:
+      name: provider
+      sha256: "4e82183fa20e5ca25703ead7e05de9e4cceed1fbd1eadc1ac3cb6f565a09f272"
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.1.5+1"
+  pub_semver:
+    dependency: transitive
+    description:
+      name: pub_semver
+      sha256: "5bfcf68ca79ef689f8990d1160781b4bad40a3bd5e5218ad4076ddb7f4081585"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.0"
+  pubspec_parse:
+    dependency: transitive
+    description:
+      name: pubspec_parse
+      sha256: "0560ba233314abbed0a48a2956f7f022cce7c3e1e73df540277da7544cad4082"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.5.0"
+  shelf:
+    dependency: transitive
+    description:
+      name: shelf
+      sha256: e7dd780a7ffb623c57850b33f43309312fc863fb6aa3d276a754bb299839ef12
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.4.2"
+  shelf_web_socket:
+    dependency: transitive
+    description:
+      name: shelf_web_socket
+      sha256: "3632775c8e90d6c9712f883e633716432a27758216dfb61bd86a8321c0580925"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.0"
+  simple_print:
+    dependency: transitive
+    description:
+      name: simple_print
+      sha256: "49b6796fb93b557bbba4eca687b8521d3d20ffee47d74d8a0857f6ee0727042b"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.0.1+2"
+  sky_engine:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  source_gen:
+    dependency: transitive
+    description:
+      name: source_gen
+      sha256: "1d562a3c1f713904ebbed50d2760217fd8a51ca170ac4b05b0db490699dbac17"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.2.0"
+  source_helper:
+    dependency: transitive
+    description:
+      name: source_helper
+      sha256: "4a85e90b50694e652075cbe4575665539d253e6ec10e46e76b45368ab5e3caae"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.3.10"
+  source_span:
+    dependency: transitive
+    description:
+      name: source_span
+      sha256: "56a02f1f4cd1a2d96303c0144c93bd6d909eea6bee6bf5a0e0b685edbd4c47ab"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.10.2"
+  stack_trace:
+    dependency: transitive
+    description:
+      name: stack_trace
+      sha256: "8b27215b45d22309b5cddda1aa2b19bdfec9df0e765f2de506401c071d38d1b1"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.12.1"
+  stream_channel:
+    dependency: transitive
+    description:
+      name: stream_channel
+      sha256: "969e04c80b8bcdf826f8f16579c7b14d780458bd97f56d107d3950fdbeef059d"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.4"
+  stream_transform:
+    dependency: transitive
+    description:
+      name: stream_transform
+      sha256: ad47125e588cfd37a9a7f86c7d6356dde8dfe89d071d293f80ca9e9273a33871
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.1"
+  string_scanner:
+    dependency: transitive
+    description:
+      name: string_scanner
+      sha256: "921cd31725b72fe181906c6a94d987c78e3b98c2e205b397ea399d4054872b43"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.4.1"
+  term_glyph:
+    dependency: transitive
+    description:
+      name: term_glyph
+      sha256: "7f554798625ea768a7518313e58f83891c7f5024f88e46e7182a4558850a4b8e"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.2.2"
+  test_api:
+    dependency: transitive
+    description:
+      name: test_api
+      sha256: "8161c84903fd860b26bfdefb7963b3f0b68fee7adea0f59ef805ecca346f0c7a"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.7.10"
+  timezone:
+    dependency: transitive
+    description:
+      name: timezone
+      sha256: "2236ec079a174ce07434e89fcd3fcda430025eb7692244139a9cf54fdcf1fc7d"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.9.4"
+  twilio_voice:
+    dependency: "direct main"
+    description:
+      name: twilio_voice
+      sha256: "010ac416dc8bcc842486407aec2e6f97fd5bb34b521c04fd4a4a5710f9ec045b"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.3.2+2"
+  typed_data:
+    dependency: transitive
+    description:
+      name: typed_data
+      sha256: f9049c039ebfeb4cf7a7104a675823cd72dba8297f264b6637062516699fa006
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.4.0"
+  uuid:
+    dependency: transitive
+    description:
+      name: uuid
+      sha256: "1fef9e8e11e2991bb773070d4656b7bd5d850967a2456cfc83cf47925ba79489"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.5.3"
+  vector_math:
+    dependency: transitive
+    description:
+      name: vector_math
+      sha256: d530bd74fea330e6e364cda7a85019c434070188383e1cd8d9777ee586914c5b
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.0"
+  vm_service:
+    dependency: transitive
+    description:
+      name: vm_service
+      sha256: "45caa6c5917fa127b5dbcfbd1fa60b14e583afdc08bfc96dda38886ca252eb60"
+      url: "https://pub.dev"
+    source: hosted
+    version: "15.0.2"
+  watcher:
+    dependency: transitive
+    description:
+      name: watcher
+      sha256: "1398c9f081a753f9226febe8900fce8f7d0a67163334e1c94a2438339d79d635"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.2.1"
+  web:
+    dependency: transitive
+    description:
+      name: web
+      sha256: "868d88a33d8a87b18ffc05f9f030ba328ffefba92d6c127917a2ba740f9cfe4a"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.1"
+  web_callkit:
+    dependency: transitive
+    description:
+      name: web_callkit
+      sha256: ca05b0fd79366ea072c1ea4982c8a7880ad219e4d1cc74a3a541b010533febee
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.0.4+1"
+  web_socket:
+    dependency: transitive
+    description:
+      name: web_socket
+      sha256: "34d64019aa8e36bf9842ac014bb5d2f5586ca73df5e4d9bf5c936975cae6982c"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.1"
+  web_socket_channel:
+    dependency: transitive
+    description:
+      name: web_socket_channel
+      sha256: d645757fb0f4773d602444000a8131ff5d48c9e47adfe9772652dd1a4f2d45c8
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.3"
+  win32:
+    dependency: transitive
+    description:
+      name: win32
+      sha256: d7cb55e04cd34096cd3a79b3330245f54cb96a370a1c27adb3c84b917de8b08e
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.15.0"
+  xdg_directories:
+    dependency: transitive
+    description:
+      name: xdg_directories
+      sha256: "7a3f37b05d989967cdddcbb571f1ea834867ae2faa29725fd085180e0883aa15"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.0"
+  xml:
+    dependency: transitive
+    description:
+      name: xml
+      sha256: "971043b3a0d3da28727e40ed3e0b5d18b742fa5a68665cca88e74b7876d5e025"
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.6.1"
+  yaml:
+    dependency: transitive
+    description:
+      name: yaml
+      sha256: b9da305ac7c39faa3f030eccd175340f968459dae4af175130b3fc47e40d76ce
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.3"
+sdks:
+  dart: ">=3.10.3 <4.0.0"
+  flutter: ">=3.38.4"

mobile/pubspec.yaml

@@ -0,0 +1,29 @@
+name: twp_softphone
+description: TWP Softphone - VoIP client for Twilio WordPress Plugin
+publish_to: 'none'
+version: 1.0.0+1
+
+environment:
+  sdk: ^3.5.0
+
+dependencies:
+  flutter:
+    sdk: flutter
+  twilio_voice: ^0.3.0
+  firebase_core: ^3.0.0
+  firebase_messaging: ^15.0.0
+  dio: ^5.4.0
+  flutter_secure_storage: ^10.0.0
+  provider: ^6.1.0
+  flutter_local_notifications: ^17.0.0
+  json_annotation: ^4.8.0
+
+dev_dependencies:
+  flutter_test:
+    sdk: flutter
+  flutter_lints: ^4.0.0
+  build_runner: ^2.4.0
+  json_serializable: ^6.7.0
+
+flutter:
+  uses-material-design: true

mobile/test/widget_test.dart

@@ -0,0 +1,7 @@
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  test('placeholder test', () {
+    expect(1 + 1, 2);
+  });
+}

twilio-wp-plugin.php

@@ -3,7 +3,7 @@
  * Plugin Name: Twilio WP Plugin
  * Plugin URI: https://repo.anhonesthost.net/wp-plugins/twilio-wp-plugin
  * Description: WordPress plugin for Twilio integration with phone scheduling, call forwarding, queue management, and Eleven Labs TTS
- * Version: 2.8.9
+ * Version: {auto_update_value_on_deploy}
  * Author: Josh Knapp
  * License: GPL v2 or later
  * Text Domain: twilio-wp-plugin
@@ -15,11 +15,13 @@ if (!defined('WPINC')) {
 }
 
 // Plugin constants
-define('TWP_VERSION', '2.8.9');
+define('TWP_VERSION', '{auto_update_value_on_deploy}');
 define('TWP_DB_VERSION', '1.6.2'); // Track database version separately
 define('TWP_PLUGIN_DIR', plugin_dir_path(__FILE__));
 define('TWP_PLUGIN_URL', plugin_dir_url(__FILE__));
 define('TWP_PLUGIN_BASENAME', plugin_basename(__FILE__));
+// External SDK location - survives plugin updates (wp-content/twilio-sdk/)
+define('TWP_EXTERNAL_SDK_DIR', dirname(dirname(TWP_PLUGIN_DIR)) . '/twilio-sdk/');
 
 /**
  * Plugin activation hook
@@ -31,17 +33,27 @@ function twp_activate() {
 
 /**
  * Check if Twilio SDK is installed and show admin notice if not
+ * Checks external location first (survives plugin updates), then internal fallback
  */
 function twp_check_sdk_installation() {
-    $autoloader_path = TWP_PLUGIN_DIR . 'vendor/autoload.php';
     $sdk_installed = false;
 
-    if (file_exists($autoloader_path)) {
-        // Try to load autoloader and check for classes
-        require_once $autoloader_path;
+    // Priority 1: Check external SDK location (survives plugin updates)
+    $external_autoloader = TWP_EXTERNAL_SDK_DIR . 'autoload.php';
+    if (file_exists($external_autoloader)) {
+        require_once $external_autoloader;
         $sdk_installed = class_exists('Twilio\Rest\Client');
     }
 
+    // Priority 2: Fall back to internal vendor directory
+    if (!$sdk_installed) {
+        $internal_autoloader = TWP_PLUGIN_DIR . 'vendor/autoload.php';
+        if (file_exists($internal_autoloader)) {
+            require_once $internal_autoloader;
+            $sdk_installed = class_exists('Twilio\Rest\Client');
+        }
+    }
+
     if (!$sdk_installed) {
         add_action('admin_notices', 'twp_sdk_missing_notice');
     }
@@ -55,10 +67,12 @@ function twp_sdk_missing_notice() {
     <div class="notice notice-error is-dismissible">
         <h3>Twilio WordPress Plugin - SDK Required</h3>
         <p><strong>The Twilio PHP SDK is required for this plugin to work.</strong></p>
-        <p>To install the SDK, run this command in your plugin directory:</p>
+        <p><strong>Recommended:</strong> Install SDK to external location (survives plugin updates):</p>
+        <code>chmod +x install-twilio-sdk-external.sh && ./install-twilio-sdk-external.sh</code>
+        <p style="margin-top: 10px;"><strong>Alternative:</strong> Install SDK inside plugin folder:</p>
         <code>chmod +x install-twilio-sdk.sh && ./install-twilio-sdk.sh</code>
-        <p>Or install via Composer: <code>composer install</code></p>
-        <p><em>Plugin path: <?php echo TWP_PLUGIN_DIR; ?></em></p>
+        <p style="margin-top: 10px;"><em>Plugin path: <?php echo esc_html(TWP_PLUGIN_DIR); ?></em></p>
+        <p><em>External SDK path: <?php echo esc_html(TWP_EXTERNAL_SDK_DIR); ?></em></p>
     </div>
     <?php
 }
@@ -126,6 +140,52 @@ function twp_deactivate() {
 register_activation_hook(__FILE__, 'twp_activate');
 register_deactivation_hook(__FILE__, 'twp_deactivate');
 
+/**
+ * Check SDK status after plugin updates
+ * Shows warning if SDK was deleted during update and external SDK not available
+ */
+function twp_check_sdk_after_update($upgrader_object, $options) {
+    // Only run for plugin updates
+    if ($options['action'] !== 'update' || $options['type'] !== 'plugin') {
+        return;
+    }
+
+    // Check if this plugin was updated
+    $updated_plugins = isset($options['plugins']) ? $options['plugins'] : array();
+    if (!in_array(TWP_PLUGIN_BASENAME, $updated_plugins)) {
+        return;
+    }
+
+    // Check if SDK is available
+    $external_sdk = file_exists(TWP_EXTERNAL_SDK_DIR . 'autoload.php');
+    $internal_sdk = file_exists(TWP_PLUGIN_DIR . 'vendor/autoload.php');
+
+    if (!$external_sdk && !$internal_sdk) {
+        // Set a transient to show warning on next admin page load
+        set_transient('twp_sdk_update_warning', true, 60 * 5);
+    }
+}
+add_action('upgrader_process_complete', 'twp_check_sdk_after_update', 10, 2);
+
+/**
+ * Show SDK update warning
+ */
+function twp_show_sdk_update_warning() {
+    if (get_transient('twp_sdk_update_warning')) {
+        delete_transient('twp_sdk_update_warning');
+        ?>
+        <div class="notice notice-warning is-dismissible">
+            <h3>Twilio WordPress Plugin - SDK Reinstall Required</h3>
+            <p><strong>The plugin was updated and the Twilio SDK needs to be reinstalled.</strong></p>
+            <p>To prevent this in the future, install the SDK to the external location:</p>
+            <code>cd <?php echo esc_html(TWP_PLUGIN_DIR); ?> && ./install-twilio-sdk-external.sh</code>
+            <p style="margin-top: 10px;">The external SDK at <code><?php echo esc_html(TWP_EXTERNAL_SDK_DIR); ?></code> survives plugin updates.</p>
+        </div>
+        <?php
+    }
+}
+add_action('admin_notices', 'twp_show_sdk_update_warning');
+
 /**
  * Core plugin class
  */