URL parameter #config.webrtcIceUdpDisable=true doesn't make the Audio/video work

URL parameter #config.webrtcIceUdpDisable=true makes the communication on TCP port but does not show Audio/Video expect own.
Browser Console gives error: Bridge Channel send: no opened channel
No error in JVB or Jicofo log.
Conference is also not listed in localhost:8080/Colibri/Conferences

I am trying to force a conference on TCP using url configuration parameters.