You can dial ‘echo’ (without the quotes) in the dial string and hit ‘Enter’
and it does the following:
- Send back the client Video stream.
- Send back the client Audio stream, toggled with DTMF "0".
The audio stream is not sent back by default to avoid local audio feedbacks on the client in case the user is not using earphones. Just press "0" to enable it & “0” to disable it.