Video call in Unity?

Is it possible to make two computers engage in a video call (across a network)?

I'm working on a project to design a virtual campus (Where players/students can design their avatars, attend lectures, talk with friends,.. etc). A part of it is where a professor can do a realtime online video streaming - resembling a lecture, another is where two students can chat with each other via video call.

So, my question is: Is this possible? And if it is, can you give my any guidelines on what to do/learn? I've already applied some tutorials on how to make a basic MMO, and on capturing video from a webcam & displaying it on a game object. But I can't seem to merge them together.

Your help is much appreciated :)

EDIT: 8 March. I've managed to write a script to transfer the data from the webcam over the network. It gives a blank page on the receiver's end, but it's something :)

 #pragma strict
  
 var webcamTexture : WebCamTexture;
 var data : Color32[];
  
  
 function OnServerInitialized() {
         webcamTexture = WebCamTexture();
         renderer.material.mainTexture = webcamTexture;  
         webcamTexture.Play();
         data = new Color32[webcamTexture.width * webcamTexture.height];
 }
  
 function Update () {
     webcamTexture.GetPixels32 (data);
 }
  
 function OnConnectedToServer() {
     networkView.RPC ("WebcamStream", RPCMode.Others, data, webcamTexture);
     webcamTexture.Play();
 }
  
 @RPC
 function WebcamStream (data : Color32 [], webcamTexture: WebCamTexture) {
     var    newwebcamTexture: WebCamTexture = webcamTexture;
     renderer.material.mainTexture = newwebcamTexture;
     var newdata: Color32[] = data;
     webcamTexture.GetPixels32 (newdata);
 }