Although default participant settings are determined by an org's IT admin, a meeting organizer may want to change them for a specific meeting.
You can make changes to your meeting settings before a meeting by going to Meeting options. There are three ways to get there:
In Teams, go to Calendar , select a meeting, and then Meeting options.
In a meeting invitation, select Meeting options.
During a meeting, select Show participants in the meeting controls. Then, above the list of participants, choose Manage permissions .
All of these will take you to a web page, where you'll see a few options for changing participant settings.
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