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DEFINITY ECS Release 8.2 Maintenance for R8.2csi
555-233-119 Issue 1
April 2000
Maintenance for csi systems
1-93Multimedia Call Handling
1
Solution
1. Use the Status Conference x form 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 form. Check the
Audio
fields
under the Mode Commands/Communication Modes section of the form.
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 DEFINITY 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
DEFINITY 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 DEFINITY MMCH does
not switch to an endpoint.