You can lock or unlock a conference from the in-meeting menu options if you have the permissions enabled by a system administrator.
- Join a call. After you join, open the Meeting Controls side bar.
- Under Security, click on the Conference lock.
- To unlock, click on the same icon.
Note: You can lock a meeting for security purposes to temporarily restrict guest access. Restriction only applies for the duration of the meeting. Members of a space are not affected, and can join the space at any time.