Steps To reproduce:
- Login to application and App has joined the PTC channel.
- Push the application to background and Lock the device.
- From the System UI press the talk button which will start transmit.
- Audio Session has been activated and Audio unit has been initialised properly.
- On terminator side no media is being played out.
Issue observed consistently on specific models which has configured audio codec with Stereo type.
More details are added : FB20281626