Teams Call API like TAPI for Call Events

Hi Meghana,

since almost a year passed and we require this functionality as well, do you have an update on this? Is there now an option or a workaround to receive real-time events of incoming PSTN calls in Microsoft Teams for all users of an organization?

The Teams desktop app has the option to open an https web page for accepted calls for CRM purposes however no options for incoming calls or denied calls.

A Teams bot can't get events between two PSTN call participants based on my interpretation of the documentation (https://learn.microsoft.com/en-us/microsoftteams/platform/bots/calls-and-meetings/call-notifications). Is this correct?

Then there are Azure Cloud Communication Services (https://learn.microsoft.com/en-us/azure/communication-services/concepts/call-automation/incoming-call-notification) which support incoming call subscriptions but only to phone numbers owned by the service so again it is not possible to receive events for incoming calls between two phone numbers that are not owned by the service.

Finally there are the Graph API notifications which support the required features however not even close to real-time (https://learn.microsoft.com/en-us/graph/webhooks#latency).

Is there any other option available (or planned) that I have missed?

Thanks,
Wladimir