Im doing exactly this, but will use it with a raspberrypi with a 7 inch touch screen as my doorbell. Someone hits the link on the screen, it hits the server, server texts me a link to join the video session and thats it really. I got the core code going (I used a simple tornado [python] implementation as it has web sockets built in)

This is the version of the js code that I got going (I couldn't reason about straight inline scripting, I had to make unnecessary classes. you dont need them) https://gist.github.com/emehrkay/1ea9a87a91e00b27843d9b71a3c...

You also need to tell nginx to serve the wss connection with http 1.1 or the handshakes fail

``` location /websocket/path { proxy_pass http://whateverSiteDotCom; proxy_http_version 1.1; proxy_set_header Connection "upgrade"; proxy_set_header Upgrade $http_upgrade; proxy_set_header Origin ''; } ```