User A opens the ESpaceMediaTerminal.html page and successfully
logs in to a VTM. User B opens the ESpaceMediaTeller.html page and successfully
logs in to a VTA. On the ESpaceMediaTerminal.html page, user A enters the access
code, selects 0-audio, and clicks Call to initiate a call. After the
ESpaceMediaTeller.html page rings, user B clicks the answer button. The voice
channel is established, but the video channel fails to be established. Or both
the voice and video channels are established but the white, blank, or green
screen occurs.
