I'm not aware of that low maximum for the Call Me feature.
What gives you the idea of the 5 person maximum for GoToMeeting's Call Me functionality?
What type of GoToMeeting plan do you have currently?
We were trying that out with the business pro account. If we do a call me with it, the interface locks one of the 5 slots to that number and the add caller button is greyed out so we can't try adding more people in. Not sure if its 5 per organizer or 5 per meeting.
The GoToMeeting Call Me function should be available for each individual attendee, as they join the broadcast itself via endpoint app. There is no limit to the number of participants in a meeting using this feature.
Are you saying Attendees are not seeing this option in their GoTo control panel? Do you have a screen shot of where you are referencing?
OK, that's where the confusion lies. Call Me functions are for each individual participant: https://support.goto.com/meeting/help/video-call-me-1-34-1324301141
What you're viewing there is an outbound option available to Organizers only. I'm afraid there are limits in place there to avoid abuse.