update cte quickstart

Author: xixian73

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

@@ -2,7 +2,7 @@
 author: xixian73
 ms.service: azure-communication-services
 ms.topic: include
-ms.date: 12/01/2021
+ms.date: 07/26/2021
 ms.author: xixian
 ---
 
@@ -55,17 +55,13 @@ Here's the code:
             type="text"
             placeholder="User access token"
             style="margin-bottom:1em; width: 500px;"/>
-        <button id="initialize-call-agent" type="button">Initialize Call Agent</button>
+        <button id="initialize-teams-call-agent" type="button">Initialize Teams Call Agent</button>
         <br>
         <br>
         <input id="callee-teams-user-id"
             type="text"
             placeholder="Enter callee's Teams user identity in format: '8:orgid:USER_GUID'"
             style="margin-bottom:1em; width: 500px; display: block;"/>
-        <input id="teams-thread-id"
-            type="text"
-            placeholder="Enter Teams thread id"
-            style="margin-bottom:1em; width: 500px; display: block;"/>
         <button id="start-call-button" type="button" disabled="true">Start Call</button>
         <button id="hangup-call-button" type="button" disabled="true">Hang up Call</button>
         <button id="accept-call-button" type="button" disabled="true">Accept Call</button>
@@ -91,10 +87,10 @@ The following classes and interfaces handle some of the main features of the Azu
 | Name                                | Description                                                                                                                              |
 | ----------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------- |
 | `CallClient`                        | The main entry point to the Calling SDK.                                                                                                 |
-| `AzureCommunicationTokenCredential` | Implements the `CommunicationTokenCredential` interface, which is used to instantiate `callAgent`.                                       |
-| `CallAgent`                         | Used to start and manage calls.                                                                                                          |
+| `AzureCommunicationTokenCredential` | Implements the `CommunicationTokenCredential` interface, which is used to instantiate `teamsCallAgent`.                                       |
+| `TeamsCallAgent`                         | Used to start and manage Teams calls.                                                                                                          |
 | `DeviceManager`                     | Used to manage media devices.                                                                                                            |
-| `Call`                              | Used for representing a Call                                                                                                              |
+| `TeamsCall`                              | Used for representing a Teams Call                                                                                                              |
 | `LocalVideoStream`                  | Used for creating a local video stream for a camera device on the local system.                                                          |
 | `RemoteParticipant`                 | Used for representing a remote participant in the Call                                                                                   |
 | `RemoteVideoStream`                 | Used for representing a remote video stream from a Remote Participant.        
@@ -111,7 +107,7 @@ AzureLogger.log = (...args) => {
     console.log(...args);
 };
 // Calling web sdk objects
-let callAgent;
+let teamsCallAgent;
 let deviceManager;
 let call;
 let incomingCall;
@@ -120,8 +116,7 @@ let localVideoStreamRenderer;
 // UI widgets
 let userAccessToken = document.getElementById('user-access-token');
 let calleeTeamsUserId = document.getElementById('callee-teams-user-id');
-let teamsThreadId = document.getElementById('teams-thread-id');
-let initializeCallAgentButton = document.getElementById('initialize-call-agent');
+let initializeCallAgentButton = document.getElementById('initialize-teams-call-agent');
 let startCallButton = document.getElementById('start-call-button');
 let hangUpCallButton = document.getElementById('hangup-call-button');
 let acceptCallButton = document.getElementById('accept-call-button');
@@ -131,20 +126,20 @@ let connectedLabel = document.getElementById('connectedLabel');
 let remoteVideoContainer = document.getElementById('remoteVideoContainer');
 let localVideoContainer = document.getElementById('localVideoContainer');
 /**
- * Create an instance of CallClient. Initialize a CallAgent instance with a CommunicationUserCredential via created CallClient. CallAgent enables us to make outgoing calls and receive incoming calls. 
+ * Create an instance of CallClient. Initialize a TeamsCallAgent instance with a CommunicationUserCredential via created CallClient. TeamsCallAgent enables us to make outgoing calls and receive incoming calls. 
  * You can then use the CallClient.getDeviceManager() API instance to get the DeviceManager.
  */
 initializeCallAgentButton.onclick = async () => {
     try {
         const callClient = new CallClient(); 
         tokenCredential = new AzureCommunicationTokenCredential(userAccessToken.value.trim());
-        callAgent = await callClient.createCallAgent(tokenCredential)
+        teamsCallAgent = await callClient.createTeamsCallAgent(tokenCredential)
         // Set up a camera device to use.
         deviceManager = await callClient.getDeviceManager();
         await deviceManager.askDevicePermission({ video: true });
         await deviceManager.askDevicePermission({ audio: true });
         // Listen for an incoming call to accept.
-        callAgent.on('incomingCall', async (args) => {
+        teamsCallAgent.on('incomingCall', async (args) => {
             try {
                 incomingCall = args.incomingCall;
                 acceptCallButton.disabled = false;
@@ -171,7 +166,7 @@ startCallButton.onclick = async () => {
     try {
         const localVideoStream = await createLocalVideoStream();
         const videoOptions = localVideoStream ? { localVideoStreams: [localVideoStream] } : undefined;
-        call = callAgent.startCall([{ microsoftTeamsUserId: calleeTeamsUserId.value.trim() }], { videoOptions: videoOptions, threadId: teamsThreadId });
+        call = teamsCallAgent.startCall([{ microsoftTeamsUserId: calleeTeamsUserId.value.trim() }], { videoOptions: videoOptions });
         // Subscribe to the call's properties and events.
         subscribeToCall(call);
     } catch (error) {
@@ -181,7 +176,7 @@ startCallButton.onclick = async () => {
 /**
  * Accepting an incoming call with a video
  * Add an event listener to accept a call when the `acceptCallButton` is selected.
- * You can accept incoming calls after subscribing to the `CallAgent.on('incomingCall')` event.
+ * You can accept incoming calls after subscribing to the `TeamsCallAgent.on('incomingCall')` event.
  * You can pass the local video stream to accept the call with the following code.
  */
 acceptCallButton.onclick = async () => {