Voicemail not visible in Teams under call tab.

I did "fix" this.... Here's how to think of it: If a call goes to a call group and that call group doesn't pick up and has a Voicemail box attached via a VIrtual User license on a resource, it will indicate a voicemail on the calls tab in Teams. What happens is first it tells Teams 'Missed Call', then it connects the Voicemail left to this 'Missed Call' item and it changes to a 'Voicemail'. It it directs out of the group through the AutoAttendent or call queue logic to a Voice App or other extension, the end resulting voicemail never gets connected to the 'Missed Call' item in Teams...

The voicemail will show in Outlook no matter the path; it just won't in Teams unless it specifically has a 'Missed Call' tag AND the voicemail happens directly in that call logic path.

I hope that helps, and I hope they fix it (and I hope I explained my findings well enough 🙂 )