How to implement video chat?

Question

Chats

How to implement chat with audio and video stream. Both jointly and separately.
I'm trying to master WebRTC, but the information on Habré is outdated (2013), I could not find new and intelligible ones. What technologies are more relevant now for such things?
At the moment, several examples have been implemented, but the flow between devices still does not pass. Registered on the turn-server (viagenie.ca) but with these accesses it was also not possible to send the video.
Here if that part of the code:

var server = { iceServers:[
{url:'stun:stun.l.google.com:19302'},
{url:'stun:stun1.l.google.com:19302'},
{url:'stun:stun2.l.google.com:19302'},
{url:'stun:stun3.l.google.com:19302'},
{url:'stun:stun4.l.google.com:19302'},
{url:'stun:stunserver.org'},
{url:'stun:stun.softjoys.com'},
{url:'stun:stun.voiparound.com'},
{url:'stun:stun.voipbuster.com'},
{url:'stun:stun.voipstunt.com'},
{url:'stun:stun.voxgratia.org'},
{url:'stun:stun.xten.com'},{url:'stun:stun01.sipphone.com'},
{url:'stun:stun.ekiga.net'},
{url:'stun:stun.fwdnet.net'},
{url:'stun:stun.ideasip.com'},
{url:'stun:stun.iptel.org'},
{url:'stun:stun.rixtelecom.se'},
{url:'stun:stun.schlund.de'},
{
    url: 'turn:numb.viagenie.ca',
    credential: 'xxx',
    username: '[email protected]'
}]};

Answer 1

I would suggest using Peer.js . Provides a convenient and simple API for working with WebRTC. Video chat is implemented in 10-20 lines.

Answer 2

Why not use Google Hangouts ? Very high quality of communication, "chats" if desired, can be broadcast on YouTube or, in fact, from the end - upload it there.
In addition, there is a very good API for various advanced business logic.