ORTC is a W3C standard feature (http://ortc.org/ http://ortc.org/) currently requesting for implementations. For this specific demo we wanted to demo ORTC to O

ORTC is a W3C standard feature (http://ortc.org/ http://ortc.org/) currently requesting for implementations. For this specific demo we wanted to demo ORTC to ORTC communication so you need 2 browsers that support it. At this moment only Microsoft Edge on the latest insider flight does. There are several initiatives to make the bridge between ORTC and WebRTC: simplewebrtc.com/audio.html is one that does that for audio.