Lock your session
Organizers can lock their meeting to prevent unexpected attendees from joining the current session.
If you have back-to-back
meetings, you no longer have to worry about being disrupted by additional attendees if the session goes over the scheduled time. This comes in handy if you run your personal meeting room frequently.
Results: When attendees join your meeting after it's been locked, they are placed in a waiting room. Once the meeting is unlocked, all attendees will automatically be connected to the meeting.