Class android.telecom.Connection

Added Methods
void handleRttUpgradeResponse(RttTextStream)  
void onDeflect(Uri)  
void onHandoverComplete()  
void onStartRtt(RttTextStream)  
void onStopRtt()  
void requestBluetoothAudio(BluetoothDevice)  
void sendRemoteRttRequest()  
void sendRttInitiationFailure(int)  
void sendRttInitiationSuccess()  
void sendRttSessionRemotelyTerminated()  
 

Added Fields
int CAPABILITY_SUPPORT_DEFLECT  
int PROPERTY_IS_RTT