Google+ Technological Details

Google+ Hangouts is an online cloud video conferencing platform based on XMPP, Jingle, RTP, ICE, STUN, SRTP, and which has taken a completely different approach than Skype which uses a P2P network. Hangouts is a client-server/cloud technology that heavily relies on Google’s infrastructure. There is no data available on how much resources Hangouts consume, but it is expected to be a lot. All of that in order to provide low-latency (<100ms) for smooth group communication.