Unfortunately because of changing priorities, this feature was moved to the backlog. The team hopes to pick it up again in the near future.
An error occurred while saving the commentJared Streeto commented
I have the same issue. It works both whens (when I receive a call and when I make one). Although, sometimes it works, but more often than not it doesn't. It will then tell me I missed a call in the activity section. I have to then use Skype to make a VOIP call, which defeats the purpose of Teams and keeping all communication in one place.