Avaya DEFINITY Server CSI Maintenance Manual page 118

Maintenance for CSI systems
Solution
1. Use the Status Conference x screen and check the Audio Mode field for
the current operating mode of the conference.
2. Another indication of the audio modes is in the "Incoming Mode
Commands from Endpoint and Outgoing Commands from MMI" on page 3
of the Status Conference x Endpoint y screen. Check the Audio fields
under the Mode Commands/Communication Modes section of the screen.
Some Parties Cannot Be Heard by Others (Audio
Subsetting)
Description
Problems where varying subsets of the conference hear different things may have
problems with the various summing resources/groups that are in use. Traditionally
theses faults are caused by the SPE not cleaning up the connections properly.
Isolation and diagnosis should focus on the VC resources in use by that
conference.
Solution
1. Use the status conference command to list the VC resources in use by
this conference. Try a hot replacement of any VC boards in use, which
refreshes the VC translations and move all of the audio connections to
different VC ports.
2. If the problem still exists, try dropping the conference and then bringing the
conference back up again. Not only does this refresh VC translations, but
uses different timeslots as well.
3. If the problem still exists, suspect a hardware problem. If practical, wait for
the Avaya Definity Server CSI MMCH to be idle (no active conferences),
and then check the circuit packs for active (yellow) LEDs. If any of these
are unexpected, such as on a VC board, try replacing the board and then
bringing the conference up again.
Calls Terminate with No Video
Description
Generally, loss of video can be divided into 2 types. The first occurs when the
Avaya Definity Server CSI MMCH switches to the endpoint, but nobody sees
them. The receivers see either "black" video or a frozen image of the previous
speaker depending on the codec of the manufacturer. The type occurs when the
Avaya Definity Server CSI MMCH does not switch to an endpoint.
118
Issue 5 October 2002
555-233-119