Hi @Vikas Kumar Sharma based on the error and your note about using a personal Outlook account, it is important to know ACS Teams interoperability currently has some limitations:
- Teams interop calls only work with meetings created in Microsoft Teams commercial/enterprise accounts (Microsoft 365)
- Personal Microsoft accounts (like @outlook.com, @hotmail.com, etc.) are not supported
- Teams meetings must be created within an organization's tenant
So to fix this, you'll need to:
- Use a Microsoft 365 (commercial/enterprise) account to create the Teams meeting, not a personal account
- Make sure your organization's tenant has the proper licenses and permissions set up
- Use a proper Teams meeting link format from your organization's Teams
You can verify this by:
- Creating a Teams meeting using a work/school account (ends with your organization's domain)
- The meeting URL should look something like:
[https://teams.microsoft.com/l/meetup-join/[meeting-id]
](https://teams.microsoft.com/l/meetup-join/%5Bmeeting-id%5D)
This limitation is documented in Microsoft's official docs:
https://zcusa.951200.xyz/en-us/azure/communication-services/concepts/join-teams-meeting
Hope that help.
-Grace