question: public void createDataChannel ( ) { if ( null != callReference ) { RespokeCall call = callReference . get ( ) ; if ( null != call ) { PeerConnection peerConnection = call . getPeerConnection ( ) ; dataChannel = peerConnection . createDataChannel ( "respokeDataChannel" , new DataChannel . Init ( ) ) ; dataChannel . registerObserver ( this ) ; } } }
target:  Establish a new direct connection instance with the peer connection for the call. This is used internally to the SDK and should not be called directly by your client application.