We are currenlty ruuning v1.0.00.19451 of MS Teams. So of our users started to report an issues where voice/video call icon will disapperar from their MS Teams (desktop application) for few hours. They can still recieve calls over MS Teams but unable to make any.
Its is quite annoying as we have now rolled out MS Teams to whole organisation. Re-installing MS Teams dose fix the issue either.
I'm having the same symptom here. I've checked our messaging policies and everything seems turned on. I don't think it's a bug in the app per-se as I can sign into another domain's office 365 account in the same installation and the call buttons show up.
Same issue on on specific tenant, no CALL, VIDEO or SHARE icons in top right of the App and when using the browser. Must be a back end thing and ticket open with Support but they are struggling - any one got any hints for them?