Hi,
I can help you with implementation of your WebRTC feature.
But I would need to know the following:
1. Do you have shell access to your server (needed to install node.js) ?
2. Are you using Apache or Nginx as your server (needed to setup proxy for WebRTC signaling server,
which runs on node.js) ?
I have previously written WebRTC component for a PHP website, so have hands-on experience with this technology.