Multimedia Call Handling
Issue 5 October 2002
121
555-233-119
No Switching, Full Motion Video
If a room is excessively noisy, the Avaya Definity Server CSI MMCH may receive
sufficient audio signal to conclude that there is a speaker present. Use the Status
Conference x screen to determine if the MMCH thinks an endpoint is talking. The
MMCH sets the
Ts
field to
t
for each endpoint if there is voice energy detected.
This endpoint may have to mute when nobody at the site is speaking to allow the
conference to proceed normally. Remind the customer that it may be necessary to
mute if a side conversation is going on in the background, just as one would do in
an audio conference. If the system does not switch broadcasters even after the
current broadcaster has muted, type display conference X to ensure that the
conference is in voice-activated mode. Also verify that parties who were speaking
are valid video sources as described in
‘‘Calls Terminate with No Video’’ on page
155
”.
The See-Me feature (MCV) can also cause VAS to “lock-up.” An endpoint can
activate MCV to force their site to become the broadcaster. If they do not disable
the feature when finished, the system remains in this mode indefinitely. Beginning
with Release 3.0, status conference X shows that MCV is in effect by displaying
av
in the Video Status (Vs) column. Page 3 of the Status Conference X Endpoint
Y screen also has a
Broadcaster
field that indicates MCV is in effect with
(SEE-ME) as the broadcaster. The same scenario can occur in a CHAIR or
UCC-controlled conference with a designated broadcaster. In this situation the
CHAIR/UCC has not released the designated broadcaster and returned to VAS
mode. If there is a UCC-designated broadcaster, status conference X indicates a
Video Status of
u
. Also, for UCC rollcall the return video may appear to be stuck.
Check the Video Status for an “
R
,” indicating rollcall.
If none of the examples above appears to be the cause, and if the room was quiet,
all speakers are valid video sources, the conference is voice-activated, and the
speaker can be heard, then escalate the problem.
Video Never Switches to a Particular Party
Description
Verify that the endpoint is a valid video source as described in the
‘‘Calls
Terminate with No Video’’ on page 155
”. If it is, the audio from the endpoint may
not have sufficient voice signal for the hardware to determine that the parties at
the endpoint are speaking. Check the
Talk
field on page three of the Status
Conference X Endpoint Y screen to see if the
talking bit
is
y
. Check the
audio by standing adjacent to the microphone and speaking at a normal level.
Solution
If the audio is not muffled:
1. Use the status conference command to determine which port on the
TN788B (VC board) is connected to this endpoint.
2. Check the VC (TN788B) board using the test board xxyy long command.
3. Drop the call.