Jitsi is a platform for video-conferencing on multiple devices. It is free, open-source, and self-hostable. It can also be used at no cost at meet.jit.si.
Bring virtual guests to class
Invite guests to join your class through Jitsi without requiring them to create an account or be subject to surveillance on another service.
Manage your own video server
Students install and manage a Jitsi instance to better understand the technology.
Commercial videoconference software such as Skype and Zoom.