Merge pull request #284912 from mikehang-msft/mhang/AddCommunicationUserIdentityToRoomQuickStart

Added a note to indicate Rooms support CommunicationUserIdentity only

Author: prmerger-automator[bot]

articles/communication-services/quickstarts/rooms/get-started-rooms.md

@@ -27,7 +27,7 @@ The following table lists the main properties of `room` objects:
 | `validFrom`           | Earliest time a `room` can be used. |
 | `validUntil`          | Latest time a `room` can be used. |
 | `pstnDialOutEnabled`  | Enable or disable dialing out to a PSTN number in a room.|
-| `participants`        | List of participants to a `room`. Specified as a `CommunicationIdentifier`. |
+| `participants`        | List of participants to a `room`. Specified as a `CommunicationUserIdentifier`. |
 | `roleType`            | The role of a room participant. Can be either `Presenter`, `Attendee`, or `Consumer`. |
 
 ::: zone pivot="platform-azcli"

articles/communication-services/quickstarts/rooms/includes/rooms-quickstart-java.md

@@ -123,7 +123,7 @@ RoomsClient roomsClient = new RoomsClientBuilder().connectionString(connectionSt
 ## Create a room
 
 ### Set up room participants
-In order to set up who can join a room, you need to have the list of the identities of those users. You can follow the instructions [here](../../identity/access-tokens.md?pivots=programming-language-java) for creating users and issuing access tokens. Alternatively, if you want to create the users on demand, you can create them using the `CommunicationIdentityClient`.
+In order to set up who can join a room, you need to have the list of the identities of those users. You can follow the instructions [here](../../identity/access-tokens.md?pivots=programming-language-java) for creating users and issuing access tokens. Alternatively, if you want to create the users on demand, you can create them using the `CommunicationIdentityClient`. ACS Rooms currently supports a room participant of type CommunicationUserIdentifier only, using other types of CommunicationIdentity will result in a runtime error.
 
 To use `CommunicationIdentityClient`, add the following package:
 

articles/communication-services/quickstarts/rooms/includes/rooms-quickstart-javascript.md

@@ -89,7 +89,7 @@ const roomsClient = new RoomsClient(connectionString);
 
 ### Set up room participants
 
-In order to set up who can join a room, you need to have the list of the identities of those users. You can follow the instructions [here](../../identity/access-tokens.md?pivots=programming-language-javascript) for creating users and issuing access tokens. Alternatively, if you want to create the users on demand, you can create them using the `CommunicationIdentityClient`.
+In order to set up who can join a room, you need to have the list of the identities of those users. You can follow the instructions [here](../../identity/access-tokens.md?pivots=programming-language-javascript) for creating users and issuing access tokens. Alternatively, if you want to create the users on demand, you can create them using the `CommunicationIdentityClient`. ACS Rooms currently supports a room participant of type CommunicationUserIdentifier only, using other types of CommunicationIdentity will result in a runtime error.
 
 To use the CommunicationIdentityClient, install the following npm package:
 

articles/communication-services/quickstarts/rooms/includes/rooms-quickstart-net.md

@@ -91,7 +91,7 @@ RoomsClient roomsClient = new RoomsClient(connectionString);
 
 ### Set up room participants
 
-In order to set up who can join a room, you'll need to have the list of the identities of those users. You can follow the instructions [here](../../identity/access-tokens.md?pivots=programming-language-csharp) for creating users and issuing access tokens. Alternatively, if you want to create the users on demand, you can create them using the `CommunicationIdentityClient`.
+In order to set up who can join a room, you'll need to have the list of the identities of those users. You can follow the instructions [here](../../identity/access-tokens.md?pivots=programming-language-csharp) for creating users and issuing access tokens. Alternatively, if you want to create the users on demand, you can create them using the `CommunicationIdentityClient`. ACS Rooms currently supports a room participant of type CommunicationUserIdentifier only, using other types of CommunicationIdentity will result in a runtime error.
 
 To use the `CommunicationIdentityClient`, install the following package:
 

articles/communication-services/quickstarts/rooms/includes/rooms-quickstart-python.md

@@ -79,7 +79,7 @@ rooms_client = RoomsClient.from_connection_string(connection_string)
 ## Create a room
 
 ### Set up room participants
-In order to set up who can join a room, you'll need to have the list of the identities of those users. You can follow the instructions [here](../../identity/access-tokens.md?pivots=programming-language-python) for creating users and issuing access tokens. Alternatively, if you want to create the users on demand, you can create them using the `CommunicationIdentityClient`.
+In order to set up who can join a room, you'll need to have the list of the identities of those users. You can follow the instructions [here](../../identity/access-tokens.md?pivots=programming-language-python) for creating users and issuing access tokens. Alternatively, if you want to create the users on demand, you can create them using the `CommunicationIdentityClient`. ACS Rooms currently supports a room participant of type CommunicationUserIdentifier only, using other types of CommunicationIdentity will result in a runtime error.
 
 To use the `CommunicationIdentityClient`, install the following package:
 

articles/communication-services/quickstarts/rooms/manage-rooms-call.md

@@ -67,7 +67,7 @@ call_connection_properties = client.connect_call(call_locator=room_call_locator,
 Once successfully connected to a room call, a `CallConnect` event is notified via Callback URI. You can use `callConnectionId` to retrieve a call connection on the room call as needed. The following sample code snippets use the `callConnectionId` to demonstrate this function.
 
 
-### Add PSTN Participant
+### Add PSTN participant
 Using Call Automation you can dial out to a PSTN number and add the participant into a room call. You must, however, set up a room to enable PSTN dial-out option (`EnabledPSTNDialout` set to `true`) and the Azure Communication Services resource must have a valid phone number provisioned.
 
 For more information, see [Rooms quickstart](../../quickstarts//rooms/get-started-rooms.md?tabs=windows&pivots=platform-azcli#enable-pstn-dial-out-capability-for-a-room).
@@ -120,7 +120,7 @@ result = call_connection_client.add_participant(
 ```
 -----
 
-### Remove PSTN Participant
+### Remove PSTN participant
 
 ### [csharp](#tab/csharp)
 
@@ -218,7 +218,7 @@ result = call_connection_client.send_dtmf_tones(
 ```
 -----
 
-### Call Recording
+### Call recording
 Azure Communication Services rooms support recording capabilities including `start`, `stop`, `pause`, `resume`, and so on, provided by Call Automation. See the following code snippets to start/stop/pause/resume a recording in a room call. For a complete list of actions, see [Call Automation recording](../../concepts/voice-video-calling/call-recording.md#get-full-control-over-your-recordings-with-our-call-recording-apis).
 
 ### [csharp](#tab/csharp)
@@ -315,7 +315,7 @@ stop_recording = call_automation_client.stop_recording(recording_id = recording_
 ```
 -----
 
-### Terminate a Call
+### Terminate a call
 You can use the Call Automation SDK Hang Up action to terminate a call. When the Hang Up action completes, the SDK publishes a `CallDisconnected` event.
 
 ### [csharp](#tab/csharp)
@@ -347,7 +347,7 @@ call_connection_client.hang_up(is_for_everyone=True)
 ```
 -----
 
-## Other Actions
+## Other actions
 The following in-call actions are also supported in a room call. 
 1. Add participant (ACS identifier)
 1. Remove participant (ACS identifier)