Holacracy Community of Practice Archive, 2015-2019 Community Holacracy Web Site

Yes, we use the google calendar to announce meetings, solicit rsvps, and because people mark yes/no for attendance it meets the legal requirement of knowing who is at which meetings.

Anyone can log in to Glassfrog during a meeting by clicking "Join Meeting" but the glassfrog history doesn't show who signed into the meeting. I will say the glassfrog team is always open to feature requests and you could request that. 

Good luck!