How to self-host to not rely on WebRTC STUN server stun.l.google.com:19302?

Actually there is no need to setup your own STUN or TURN servers, because there are a lot of public/semipublic servers. STUN from Google not always works very well.

This is my latest verified list (don't forget stun:/turn: scheme in URL):

{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:'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: 'turn:numb.viagenie.ca',    credential: 'muazkh',    username: 'webrtc@live.com'},{    url: 'turn:192.158.29.39:3478?transport=udp',    credential: 'JZEOEt2V3Qb0y27GRntt2u2PAYA=',    username: '28224511:1379330808'},{    url: 'turn:192.158.29.39:3478?transport=tcp',    credential: 'JZEOEt2V3Qb0y27GRntt2u2PAYA=',    username: '28224511:1379330808'}

https://gist.github.com/yetithefoot/7592580

In case if you need your own STUN server, you can use this one written for Node.js, or find some here.

Also you can check this and this pages for better understanding.

This is the new way to config STUN and TURN in RTCPeerConnection initialization. Below is the working mode from apprtc.appspot.com

var peerConnectionConfig = {  iceServers:[    {urls: ["turn:173.194.72.127:19305?transport=udp",       "turn:[2404:6800:4008:C01::7F]:19305?transport=udp",       "turn:173.194.72.127:443?transport=tcp",       "turn:[2404:6800:4008:C01::7F]:443?transport=tcp"       ],     username:"CKjCuLwFEgahxNRjuTAYzc/s6OMT",     credential:"u1SQDR/SQsPQIxXNWQT7czc/G4c="    },    {urls:["stun:stun.l.google.com:19302"]}  ]};

More info here

EmerCoin has large list of public STUN servers:http://enumer.org/public-stun.txtYou can use any of them.