Google Hangouts without the Google: Meetings.io (YC W11) goes live 14 years ago
Good idea. I did a similar website in a weekend using opentok API : http://bit.ly/IScw8F .
It was cool to use the website with family and friends since every one was using different services like MSN and yahoo chat. But i had issues with opentok coz it uses Flash p2p which was causing a lot of issues even when it was running on Chrome.