Merge pull request #189809 from glorialimicrosoft/patch-11

update the doc with the two new events for realTimeNotification connection status

Author: PRMerger10

articles/communication-services/concepts/chat/concepts.md

@@ -83,6 +83,8 @@ Some SDKs (like the JavaScript Chat SDK) support real-time notifications. This f
  - `chatThreadPropertiesUpdated` - when chat thread properties are updated; currently, only updating the topic for the thread is supported.
  - `participantsAdded` - when a user is added as a chat thread participant.
  - `participantsRemoved` - when an existing participant is removed from the chat thread.
+ - `realTimeNotificationConnected` - when real time notifiation is connected.
+ - `realTimeNotificationDisconnected` -when real time notifiation is disconnected.
 
 ## Push notifications 	
 To send push notifications for messages missed by your users while they were away, Communication Services provides two different ways to integrate: 

articles/communication-services/quickstarts/chat/includes/chat-js.md

@@ -351,4 +351,20 @@ await chatThreadClient.removeParticipant({ communicationUserId: <PARTICIPANT_ID>
 await listParticipants();
 ```
 Replace **PARTICIPANT_ID** with a User ID used in the previous step (<NEW_PARTICIPANT_USER_ID>).
-Add this code in place of the `<REMOVE PARTICIPANT FROM THREAD>` comment in **client.js**,
+Add this code in place of the `<REMOVE PARTICIPANT FROM THREAD>` comment in **client.js**.
+
+### Subscribe to connection status of real time notifications
+Subscription to events `realTimeNotificationConnected` and `realTimeNotificationDisconnected` allows you to know when the connection to the call server is active.
+
+```JavaScript
+// subscribe to realTimeNotificationConnected event
+chatClient.on('realTimeNotificationConnected', () => {
+  console.log("Real time notification is now connected!");
+  // your code here
+});
+// subscribe to realTimeNotificationDisconnected event
+chatClient.on('realTimeNotificationDisconnected', () => {
+  console.log("Real time notification is now disconnected!");
+  // your code here
+});
+```