Update teams-phone-extensibility-quickstart.md

Adding a note about the data location for ACS resource

Author: henikaraa

articles/communication-services/quickstarts/tpe/teams-phone-extensibility-quickstart.md

@@ -225,11 +225,15 @@ The following steps demonstrate how to receive and answer an incoming Teams call
 1. A Teams Phone number assigned to the resource account.
 1. A Teams Resource Account provisioned to send calls to the Azure Communication Services Resource.
 1. A Teams Resource Account provisioned with a Calling Plan.
-1. An Azure Communication Services Resource with permission to receive call from the Teams Resource Account.
+1. An Azure Communication Services Resource with permission to receive call from the Teams Resource Account. 
 1. [Create and host a dev tunnel](/azure/developer/dev-tunnels/get-started).
 1. (Optional) Create a Microsoft Teams user with a phone license that is voice enabled. Teams Phone license is required to add Teams users to the call. Learn more about [Microsoft Teams business options](https://www.microsoft.com/microsoft-teams/compare-microsoft-teams-business-options). For more information, see [Set up Teams Phone in your organization](/microsoftteams/setting-up-your-phone-system).
 1. Complete client and server consent as defined in [Access a user's Teams Phone separate from their Teams client](https://github.com/Azure/communication-preview/blob/master/Teams%20Phone%20Extensibility/teams-phone-extensibility-access-teams-phone.md).
 
+> [!NOTE]
+> For the Azure Communication Services resource, ensure the data location matches the Teams Tenant location to comply with data boundary regulations. You can retrieve programatically details about tenant organisation via [Get organization](https://learn.microsoft.com/en-us/graph/api/organization-get?view=graph-rest-1.0&tabs=http)
+>
+
 #### Setup and host your Azure dev tunnels
 
 Azure dev tunnels enable you to share local web services hosted on the internet. Run the commands to connect your local development environment to the public internet. Dev tunnels creates a persistent endpoint URL and which enables anonymous access. We use this endpoint to notify your application about calling events from the Azure Communication Services Call Automation service.