Update voice-video-calling-cte-java.md

Author: joffei

articles/communication-services/quickstarts/voice-video-calling/includes/custom-teams-endpoint/voice-video-calling-cte-java.md

@@ -337,12 +337,25 @@ We can also join an existing call with preset options, such as being muted
  */
 public TeamsCall joinTeamsCall(TeamsCallAgent teamsCallAgent){
 	TeamsMeetingLinkLocator link = new TeamsMeetingLinkLocator("meetingLink");
-	AudioOptions audioOptions = new AudioOptions().setMuted(true);
+	OutgoingAudioOptions audioOptions = new OutgoingAudioOptions().setMuted(true);
 	JoinTeamsCallOptions options = new JoinTeamsCallOptions().setAudioOptions(audioOptions);
 	TeamsCall call = teamsCallAgent.join(this, link, options);
 }
 ```
 
+## Setup Incoming Call Listener
+
+To be able to detect incoming calls and other actions not done by this user, listeners must be setup
+
+```java
+private TeamsIncomingCall teamsincomingCall;
+teamsCallAgent.addOnIncomingCallListener(this::handleIncomingCall);
+
+private void handleIncomingCall(TeamsIncomingCall incomingCall) {
+	this.teamsincomingCall = incomingCall;
+}
+```
+
 ## Launch the app and call the echo bot
 
 The app can now be launched using the "Run App" button on the toolbar (Shift+F10). Verify you're able to place calls by calling `8:echo123`. A pre-recorded message plays then repeat your message back to you.