Is it possible to limit number of participants in classic meeting.
The classic concurrent use is tied to the number of users on a server, but not a specific set of named users. The total number of users allowed in classic meetings is instant. An administrator sets the limit for how many users can attend to a meeting, but the scheduler of the meeting can not decide to reduce the limit of users. Currently this functionality is not available.
This enhancement request is documented SPR KABS7DDJAE.