Starting on Android SDK 3.13.1 we have added support for automatic audio routing, which allows directing output to Bluetooth, wired speakerphone etc. – using the AudioController interface, at the method called enableAutomaticAudioRouting.
Refer to the Audio Routing section of the Sinch Document site for the specific details.
Sinch recommends you switch to the latest SDK 4.8.6, which has improved WebRTC base and improved low audio for some modern devices.
Visit the In-App Video Calling product page to learn more about Sinch’s In-App Video calling products.