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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

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.