title: How to self-host to not rely on WebRTC STUN server stun.l.google.com:19302?
body: <p>I have just downloaded a video chat project. It uses a STUN server and specifies the URL <code>stun:23.21.150.121</code>. How can I use my own server instead of the STUN server? What do I have to enter instead of this URL?</p>