XHVoipManager voipManager = XHClient.getInstance().getVoipManager();
voipManager.addListener(new IXHVoipManagerListener() {
	@Override
	public void onCalling(String fromID) {
		//Receive a call
	}
	
    @Override
    public void onAudioCalling(String fromID) {
        ////Receive a audio call
    }
	
	@Override
	public void onCancled(String fromID) {
		//the other side has canceled the call
	}

	@Override
	public void onRefused(String fromID) {
		//The call has been refused
	}

	@Override
	public void onBusy(String fromID) {
		//the other side is busy now
	}
	
	@Override
    public void onMiss(String fromID) {
		//Missed call (calling by someone else during the call)
	}
	
	@Override
	public void onConnected(String fromID) {
		//the other side has been connected now
	}

	@Override
	public void onHangup(String fromID) {
		//The other side has hung up
	}

	@Override
	public void onError(String errorCode) {
		//Connection error
	}
	
    @Override
    public void onReceiveRealtimeData(byte[] data) {
		//Receive real-time whiteboard data
    }
	
	@Override
    public void onTransStateChanged(int state) {
        //Transmission status change 0: Server relay 1: P2P direct connection
    }
});

/**
 * Add VOIP event listener
 * @param voipManagerListener IXHVoipManagerListener Receive VOIP related events
 */
void addListener(IXHVoipManagerListener voipManagerListener);

/**
 * Set the media type (audio and video, audio, video)
 * @param mediaTypeEnum media type
 */
void setRtcMediaType(XHConstants.XHRtcMediaTypeEnum mediaTypeEnum);
/**
 * Get the media type（audio and video, audio, video）
 */
XHConstants.XHRtcMediaTypeEnum getRtcMediaType();

/**
 *  Switch camera direction
 */
void switchCamera();

/**
 *  Switch camera direction
 * @param cameraId Specified camera ID
 */
void switchCamera(int cameraId);

/**
 * Set the Player that displays the two screens. You can pass null when you don't need to display the video view.
 * @param selfPlayer Your own view
 * @param targetPlayer Target view
 * @param callback Result callback
 */
void setupView(StarPlayer selfPlayer, StarPlayer targetPlayer, IXHResultCallback callback);

/**
 * The calling party call the function
 * Start a video call
 * @param context Context
 * @param toID The called user ID
 * @param callback Result callback. The sessionid will be returned upon success, which is used for query of recording records on the server.
 */
void call(Context context,String toID, IXHResultCallback callback);

/**
 * The calling call the function
 * Start an audio call
 * @param context Context
 * @param toID The called user ID
 * @param callback Result callback. The sessionid will be returned upon success, which is used for query of recording records on the server.
 */
void audioCall(Context context,String toID, IXHResultCallback callback);

/**
 * cancel the call（Calling party call the function）
 * Before the other party answers or rejects, the calling party cancels the call actively.
 * @param callback
 */
void cancel(IXHResultCallback callback);

/**
 * Agree to talk to the calling party (called by the called party)
 * @param context Context
 * @param fromID the caller ID
 * @param callback  Result callback. The sessionid will be returned upon success, which is used for query of recording records on the server.
 */
void accept(Context context,String fromID, IXHResultCallback callback);

/**
 * Refuse to talk to the calling party (called by the called party)
 * @param callback Result callback
 */
void refuse(IXHResultCallback callback);

/**
 * hangup
 * @param callback Result callback
 */
void hangup(IXHResultCallback callback);

/**
 * Dynamically switch audio:the audio can be switched at any time during the live broadcast, and the status is automatically reset after the live broadcast ends.
 */
void setAudioEnable(Boolean enable);

/**
 * Dynamically switch video:the video can be switched at any time during the live broadcast, and the status is automatically reset after the live broadcast ends.
 */
void setVideoEnable(Boolean enable);

/**
 * Set recorder
 * @param recorder
 */
void setRecorder(IXHRecorder recorder);

/**
 * Switch recorder
 * @param recorder
 */
void resetRecorder(IXHRecorder recorder);