GA4 updates

Author: ashwinder

articles/communication-services/how-tos/call-automation/actions-for-call-control.md

@@ -166,9 +166,9 @@ The response provides you with CallConnection object that you can use to take fu
 2. `ParticipantsUpdated` event that contains the latest list of participants in the call.
 ![Sequence diagram for placing an outbound call.](media/make-call-flow.png)
 
-In the case where the call fails, you will receive a `CallDisconnected` and `CreateCallFailed` event with error codes for further troubleshooting (see [this page](./../../resources/troubleshooting/voice-video-calling/troubleshooting-codes.md) for more information on Call Automation error codes).
+In the case where the call fails, you will receive a `CallDisconnected` and `CreateCallFailed` event with error codes for further troubleshooting (see [this page](./../../resources/troubleshooting/voice-video-calling/troubleshooting-codes.md) for more information on error codes).
 
-## Connect to a call (in preview)
+## Connect to a call
 
 Connect action enables your service to establish a connection with an ongoing call and take actions on it. This is useful to manage a Rooms call or when client applications started a 1:1 or group call that Call automation isn't part of. Connection is established using the CallLocator property and can be of types: ServerCallLocator, GroupCallLocator, and RoomCallLocator. These IDs can be found when the call is originally established or a Room is created, and also published as part of [CallStarted](./../../../event-grid/communication-services-voice-video-events.md#microsoftcommunicationcallstarted) event. 
 
@@ -303,6 +303,8 @@ The response provides you with CallConnection object that you can use to take fu
 
 ![Sequence diagram for answering an incoming call.](media/answer-flow.png)
 
+In the case where answer operation fails, you will receive a `CallDisconnected` and `AnswerCallFailed` event with error codes for further troubleshooting (see [this page](./../../resources/troubleshooting/voice-video-calling/troubleshooting-codes.md) for more information on error codes).
+
 ## Reject a call
 
 You can choose to reject an incoming call as shown below. You can provide a reject reason: none, busy or forbidden. If nothing is provided, none is chosen by default.