Added prereqs, align table with Teams, bugfixes

Author: jamescadd

articles/communication-services/concepts/interop/teams-user/teams-shared-line-appearance.md

@@ -16,6 +16,17 @@ ms.subservice: teams-interop
 
 [!INCLUDE [Public Preview Notice](../../../../includes/public-preview-include.md)]
 Microsoft Teams shared line appearance lets a user choose a delegate to answer or handle calls on their behalf. This feature is helpful if a user has an administrative assistant who regularly handles the user's calls. In the context of Teams shared line appearance, a manager is someone who authorizes a delegate to make or receive calls on their behalf. A delegate can make or receive calls on behalf of the delegator.
+
+## Prerequisites
+
+- An Azure account with an active subscription. See [Create an account for free](https://azure.microsoft.com/free/?WT.mc_id=A261C142F). 
+- A deployed Communication Services resource. See [Create a Communication Services resource](../../quickstarts/create-communication-resource.md).
+- A user access token to enable the calling client. For more information, see [Create and manage access tokens](../../quickstarts/identity/access-tokens.md).
+- Licensing requiremnets for delegator and delegates . See [Teams phone license](https://learn.microsoft.com/microsoftteams/shared-line-appearance#license-required).
+- Enable delegation and shared line appearance. See [Enable delegation](https://learn.microsoft.com/microsoftteams/shared-line-appearance#enable-delegation-and-shared-line-appearance)
+- Assign delegates using [Microsoft Teams Client](https://support.microsoft.com/office/share-a-phone-line-with-a-delegate-in-microsoft-teams-16307929-a51f-43fc-8323-3b1bf115e5a8) or [Teams PowerShell](https://learn.microsoft.com/microsoftteams/shared-line-appearance#use-powershell).
+- Optional: Complete the quickstart to add voice calling to Microsoft Teams user. See [Quickstart: Add voice calling to Microsoft Teams user](../../quickstarts/voice-video-calling/get-started-call-to-teams-user.md).
+
 ## Use Cases
 
 **Business Enterprises**: Team leads can delegate their call responsibilities during meetings or vacations to their assistants or colleagues, ensuring uninterrupted communication with stakeholders.
@@ -28,14 +39,15 @@ Microsoft Teams shared line appearance lets a user choose a delegate to answer o
 The following Azure Communication Services and Graph platforms currently support shared line appearance:
 | Capability                                                 | Calling SDK JS | Graph SDK |
 |------------------------------------------------------------|----------------|-----------|
-| Set up delegation (add/remove/update delegate permissions) | ❌             | ✔️       |
+| Set up delegation (add/remove/update delegate permissions) | ❌             | ❌       |
 | Receive calls on behalf of another                         | ✔️            | ❌        |
 | Call a phone number on behalf of another                   | ✔️            | ❌        |
 | Call a Teams user on behalf of another                     | ✔️            | ❌        |
 | Receive an ACS user call on behalf of another Teams user   | ✔️            | ❌        |
 | Get the delegate view of shared lines                      | ❌             | ✔️       |
 | Get the delegate view of manager’s call activities         | ❌             | ❌       |
 | Get the manager view of delegates                          | ❌             | ✔️       |
+| Get shared call history                                    | ❌            | ❌        |
 | Delegate or manager can hold or resume                     | ✔️            | ❌        |
 
 >Note: Calling SDK for iOS, Android, and Windows do not currently support shared line appearance.