We conduct training webinars, and we notice that attendees who encounter computer audio issues and decide to switch to joining by phone instead are allowed to skip entering the participant ID shown on the screen when they call in. (The phone instructions say "... Enter your participant ID followed by pound. Otherwise, just press pound.")

If the attendee skips entering their participant ID, they are listed twice in the attendee panel--once under their computer-based session and again with their phone number. They're also listed twice in any post-webinar attendee reports.

Finally, with hundreds of attendees in a training webinar, it poses potential security issues by making it difficult for the host to fully remove an attendee who has called in (both instances of the attendee), because there's no way to determine which phone number is associated with their computer session in the attendee list.

So, if an attendee is joining by phone after they have joined a webinar, we want to require them to enter the participant ID.  Is there a webinar-level or Zoom account-level setting that would allow us to require the participant ID for such attendees? In other words, we don't want the attendee to hear the "Otherwise, just press pound" statement in the recorded phone instruction.

(We are aware that attendees who call in before joining the Zoom by computer won't have a participant ID to enter, so this issue doesn't apply to them. However, we think the majority of attendees probably click the link to join before calling in.) 

Thank you in advance for any guidance,
Lisa

We are wondering whether we need a Webinar 500 or Webinar 1000 licence. 

I have a user expecting more than 500 registrations for a webinar, but this person sure that far from everyone will participate live. Will the 500th registration get a notification that the webinar is full or can they still just register?