Hi @Ivan LTS ,
Does anyone else have the same issue when they join the meeting?
Have you tied to join Teams meeting with Teams web client?
Please make sure you are not on mute when join Teams meeting.
Besides, we recommend you try to make a test call from Teams app to check the issue status. In a test call, you’ll see how your mic, speaker are working. For Test Call, Go to Teams device setting > Choose Make a test call under Audio devices.
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