If no sound was detected, make sure it has been configured correctly and then try the fixes below.
This may be a problem with Microsoft Teams, or it might be a problem with the mic you’re using. If you can hear other people in a call, but they cannot hear you, it’s possible the Microsoft Teams is unable to detect the mic. When you initiate a call, the app, like other messaging apps, will automatically use the default mic and speakers, or the default communication device for the call. Microsoft Teams supports both audio and video calls.
