Videoconferencing without registering

https://www.gruveo.com

Video conferences without registration.
No installation of software is required.

How does it work?

1. We come up with a code, it must be unique.
2. Or we start the call and send a link to friends from the address bar of our browser.
3. Calls are encrypted with SSL.
4. P2P technology (man to person, bypassing the server) is more often used.