Additional meeting and call-related features and issues within Microsoft Teams for business
Same issue with Jabra - very frustrating. I opened a support ticket with them and they stated -
Thank you for contacting Jabra Support.
Thank you for providing that information. Our engineering team has analyzed the challenge and we have informed Microsoft that it is an MS Teams issue. We recommend that impacted customers open a ticket with Microsoft as well, in order to let them know that their users are experiencing the behavior.
While you are awaiting a resolution to this behavior, make a test call in MS teams after the behavior occurs, as those have had success with the headset returning to normal functionality. This can be completed via three horizontal dots on the top right corner> Settings > Devices > Make a test call button in MS Teams and then leave.