TCP Tunnelling for WebRTC with Kurento

General information for the business: We make video software for banks
Description of requirements/functionality: We have a suite of video solutions and other corporations for banks and half a year ago we implemented a WebRTC-Solution built on Kurento Media Server. This solution works great, however some of our clients have quite heavy network restrictions. Often 443 and 80 are the only open ports.

As far as we see it, we need TCP Tunnelling via a TURN server. We already setup a TURN/STUN server which is listening on port 443. But now I am not sure how to configure Kurento and the Web-Client to use the TURN server that it tunnels the UDP connection as TCP over port 443 as well.

We need TURN server installation and configuration (installation in case ours isn't done well), Kurento configuration, Web-Client configuration.
Specific technologies required: WebRTC, TURN, STUN, Kurento
OS requirements: Linux
Extra notes: Possibly there is not much missing for this solution to work. Perhaps we are only missing a setting which is making the whole process going wrong.

We need this solution as soon as possible.