For our institution, we are looking for a stable and open source webinar platform
(1) It must be all web-based.
(2) Must not take too much band width
(3) As an admin we can give separate access to all our instructors for host and organize webinar on the fly
(4) The Instructors Must not be able to see Email or other details of the students when sending them invites
(5) All webinars must be recorded and stored in compressed format. The recording must be available to students shortly after each class automatically and there must be a Classwise recording schedule automatically recreated for students to revisit again.
(6) Students have their own login to access video recordings
(7) student trainers and interact during webinar
I will say BBB Open source will be a good fit for this project.