     @sdpConstraints = {'mandatory': {'OfferToReceiveAudio':true, 'OfferToReceiveVideo':true }}
     @pc_config = {"iceServers":
           [
-              #{url:'stun:stun.l.google.com:19302'},
-              {url:'stun:waturn.cloudapp.net'},
+              {url:'stun:stun.l.google.com:19302'},
+              {url:'stun:stun01.sipphone.com'},
+              {url:'stun:stun.ekiga.net'},
+              {url:'stun:stun.fwdnet.net'},
+              {url:'stun:stun.ideasip.com'},
+              {url:'stun:stun.iptel.org'},
+              {url:'stun:stun.rixtelecom.se'},
+              {url:'stun:stun.schlund.de'},
+              {url:'stun:stun.l.google.com:19302'},
+              {url:'stun:stun1.l.google.com:19302'},
+              {url:'stun:stun2.l.google.com:19302'},
+              {url:'stun:stun3.l.google.com:19302'},
+              {url:'stun:stun4.l.google.com:19302'},
+              {url:'stun:stunserver.org'},
+              {url:'stun:stun.softjoys.com'},
+              {url:'stun:stun.voiparound.com'},
+              {url:'stun:stun.voipbuster.com'},
+              {url:'stun:stun.voipstunt.com'},
+              {url:'stun:stun.voxgratia.org'},
+              {url:'stun:stun.xten.com'},
               {
                   url: 'turn:waturn.cloudapp.net:443?transport=tcp',
                   credential: 'walkaboutpass',
                   username: 'walkabout'
+              },
+              {
+                  url: 'turn:numb.viagenie.ca',
+                  credential: 'muazkh',
+                  username: 'webrtc@live.com'
               },
               {
                   url: 'turn:192.158.29.39:3478?transport=udp',

                    'candidate': event.candidate.candidate
                  }
        })
    peer_connection.onsignalingstatechange = (ev) ->
      console.log('Signaling state changed to: ' + peer_connection.signalingState)
      console.log('icegatheringstatus: ' + peer_connection.icegatheringstatus)

    peer_connection.onaddstream = (event) =>
      console.log("onAddStream: ", event)




  # The offerer will send a number of ICE Candidate blobs to the answerer so they
  # can begin trying to find the best path to one another on the net.
  iceCandidate: (config) ->
