Teams: Manage Attendee Audio/Video in Meetings
To avoid random noise and visual distractions, disable attendee mics and cameras. Let them turn their mic or camera back on when they need to speak or be seen.
Note: Currently attendees calling into a meeting using the phone number provided in the meeting details won't be prevented from turning on their mic and camera.
Prevent Mic and Camera Use Before the Meeting
After scheduling the meeting and sending out the invite, the meeting organizer can disable the mics and cameras so that attendees can't use them during the meeting. All attendees (but not presenters) will join the meeting with mic and camera off.
Go to Calendar and double-click the meeting.
Select Meeting options near the top of the screen.
Turn off the Allow mic for attendees? or Allow camera for attendees? toggle and select Save.
Prevent Mic and Camera Use During the Meeting
The organizer and presenters can disable the mic or camera of all the attendees, or individuals, at any time during the meeting.
Note: Currently this option isn't available to organizers and presenters who join the meeting from Teams room devices.
To disable all attendee mics or cameras
Select More options next to Participants and then Disable mic for attendees or Disable camera for attendees. Attendee mics and cameras will appear dimmed.
Tip: If you just want to mute participants without disabling their mics, select Mute all participants.
If later you want to enable everyone's mic or camera, select More options again and then Allow mic for attendees or Allow camera for attendees.
To disable an individual's mic or camera
Select More options next to their name and then Disable mic or Disable camera.
Allow to Unmute Share Video
Select More options next to the name of the person and then select Allow mic or Allow camera.
That person can now unmute themselves or share video.
Note: Currently this functionality isn't available on Teams room devices.