How It Works

1. App Launch: You configure OTAudioDeviceManager to use your AudioDeviceRingtone.

2. Publishing Starts (via doPublish()): the playRingtone(url:) method gets called by the SDK

   • The driver calls stopCapture() on the SDK.
   • The driver plays the MP3/WAV file via AVAudioPlayer.

3. Subscriber Connects: You call myAudioDevice.stopRingtone().

   • The driver stops the MP3/WAV.
   • The driver calls startCapture() and startRendering() to let Vonage SDK resume the live audio.

Testing

Test on iOS Simulator

1. Run the app in the iOS Simulator
2. The simulator will use a demo video (no camera access)
3. You should see the grayscale video feed

Test on Physical Device

1. Connect an iOS device
2. Select it as the run destination
3. Grant camera permissions when prompted
4. You should see your camera feed in grayscale

Test with Multiple Participants

1. Run the app on a device or simulator
2. Use the Vonage Video Playground to join the same session
3. You should see both your custom-rendered stream and the standard subscriber stream