description below headers (how to join call)

Author: leejyoon

articles/communication-services/how-tos/calling-sdk/includes/teams-interopability/teams-interopability-android.md

@@ -11,30 +11,33 @@ ms.author: jiyoonlee
 To join a Teams meeting, use the `CallAgent.join` method and pass application context, `JoinMeetingLocator`, and `JoinCallOptions`.
 
 ### Meeting ID and passcode
+The `TeamsMeetingIdLocator` locates a meeting using a meeting ID and passcode. These can be found under a Teams meeting's join info.
 A Teams meeting ID will be 12 characters long and will consist of numeric digits grouped in threes (i.e. `000 000 000 000`).
-A passcode will consist of 6 alphabet characters (i.e. `aBcDeF`).
+A passcode will consist of 6 alphabet characters (i.e. `aBcDeF`). The passcode is case sensitive.
 
 ```java
 String meetingId, passcode; 
 TeamsMeetingIdLocator locator = new TeamsMeetingIdLocator(meetingId, passcode);
 ```
 
 ### Meeting link
+The `TeamsMeetingLinkLocator` locates a meeting using a link to a Teams meeting. This can found under a Teams meeting's join info. 
 ```java
 String meetingLink; 
 TeamsMeetingLinkLocator locator = new TeamsMeetingLinkLocator(meetingLink);
 ```
 
 ### Meeting coordinates 
-(this is currently in limited preview)
-
+The `TeamsMeetingCoordinatesLocator` locates meetings using an organizer ID, tenant ID, thread ID, and a message ID. This information can be found using Microsoft Graph.
 ```java
 Guid organizerId, tenantId;
 String threadId, messageId;
 TeamsMeetingCoordinatesLocator locator = new TeamsMeetingCoordinatesLocator(threadId, organizerId, tenantId, messageId);
 ```
 
 ## Join meeting using locators
+After creating these Teams meeting locators, you can use it to join a Teams meeting using `CallAgent.join` as shown below.
+
 ```java
 JoinCallOptions options = new JoinCallOptions();
 call = agent.join(

articles/communication-services/how-tos/calling-sdk/includes/teams-interopability/teams-interopability-ios.md

@@ -8,24 +8,28 @@ ms.author: jiyoonlee
 [!INCLUDE [Install SDK](../install-sdk/install-sdk-windows.md)]
 
 ## Meeting join methods
-To join a Teams meeting, use the `CallAgent.Jjoin` method and pass a `JoinMeetingLocator` and a `JoinCallOptions`.
+To join a Teams meeting, use the `CallAgent.join` method and pass a `JoinMeetingLocator` and a `JoinCallOptions`.
 
 ### Meeting ID and passcode
+The `TeamsMeetingIdLocator` locates a meeting using a meeting ID and passcode. These can be found under a Teams meeting's join info.
 A Teams meeting ID will be 12 characters long and will consist of numeric digits grouped in threes (i.e. `000 000 000 000`).
-A passcode will consist of 6 alphabet characters (i.e. `aBcDeF`).
+A passcode will consist of 6 alphabet characters (i.e. `aBcDeF`). The passcode is case sensitive.
 
 ```swift
 String meetingId, passcode
 let locator = TeamsMeetingIdLocator(meetingId: meetingId, passcode: passcode)
 ```
 
 ### Meeting link
+The `TeamsMeetingLinkLocator` locates a meeting using a link to a Teams meeting. This can found under a Teams meeting's join info. 
 ```swift
 String meetingLink
 let locator = TeamsMeetingLinkLocator(meetingLink: meetingLink)
 ```
 
 ## Join meeting using locators
+After creating these Teams meeting locators, you can use it to join a Teams meeting using `CallAgent.join` as shown below.
+
 ```swift
 func joinTeamsMeeting() {
     // Ask permissions

articles/communication-services/how-tos/calling-sdk/includes/teams-interopability/teams-interopability-windows.md

@@ -11,30 +11,32 @@ ms.author: jiyoonlee
 To join a Teams meeting, use the `CallAgent.JoinAsync` method and pass a `JoinMeetingLocator` and a `JoinCallOptions`.
 
 ### Meeting ID and passcode
+The `TeamsMeetingIdLocator` locates a meeting using a meeting ID and passcode. These can be found under a Teams meeting's join info.
 A Teams meeting ID will be 12 characters long and will consist of numeric digits grouped in threes (i.e. `000 000 000 000`).
-A passcode will consist of 6 alphabet characters (i.e. `aBcDeF`).
+A passcode will consist of 6 alphabet characters (i.e. `aBcDeF`). The passcode is case sensitive.
 
 ```cs
 string meetingId, passcode; 
 TeamsMeetingIdLocator locator = new TeamsMeetingIdLocator(meetingId, passcode);
 ```
 
 ### Meeting link
+The `TeamsMeetingLinkLocator` locates a meeting using a link to a Teams meeting. This can found under a Teams meeting's join info. 
 ```cs
 string meetingLink; 
 TeamsMeetingLinkLocator locator = new TeamsMeetingLinkLocator(meetingLink);
 ```
 
 ### Meeting coordinates 
-(this is currently in limited preview)
-
+The `TeamsMeetingCoordinatesLocator` locates meetings using an organizer ID, tenant ID, thread ID, and a message ID. This information can be found using Microsoft Graph.
 ```cs
 Guid organizerId, tenantId;
 string threadId, messageId;
 TeamsMeetingCoordinatesLocator locator = new TeamsMeetingCoordinatesLocator(threadId, organizerId, tenantId, messageId);
 ```
 
 ## Join meeting using locators
+After creating these Teams meeting locators, you can use it to join a Teams meeting using `CallAgent.JoinAsync` as shown below.
 ```cs
 var joinCallOptions = new JoinCallOptions() {
         OutgoingAudioOptions = new OutgoingAudioOptions() { IsMuted = true },