Help! Cisco Unity message and prompts distortion

[BAKJANO]

Has anyone experience problems with subscribers on Cisco Unity. Users are complaining that messages are cutting in and out. Sometimes callers are cutoff before they are finished leaving a message. Severe distortion, breaks up in the system prompts etc.

 

[pndscm]

Couple things to check. Is you server NIC and switchport hard coded 'full-duplex, 100Meg'? What version Unity and CCM are you running? Are the users listening through the phone or through Outlook/Unified Messaging? Check your TSP versions to be sure they are compatable.
What platform are you using? I had a similar problem a year ago with an ICS7750 and it was a Bug that I had to apply a patch.

 

[mscharag]

Two things to check:


Sounds like a voice quality issue:

1) What codec are you running on Unity (G.729 or G.711)?
2) Are the outside people complaining or is it also internal people?

 

[BAKJANO]

We are running unity 4.0 Build Number 4.0(4) SR 1 /CCM 4.0
It is coded for fill duplex. Internal - they get break up while listening yo the message and external - they get cut off while leaving the message. We are not using Unified messaging. Thanks all

 

[rtfmdude]

bakjano - use the audiostat tool in the unity tools depot and log some calls. Look for instances of 'silence inserted' - this would be indicative of a network layer problem (most of the time).

Also check the applog in the event viewer to see if you have instances of 'less than XXX milliseconds of audio' (or something like that - also indicative of network problems. Unity's silence detection will cut off callers if it's not getting any rtp.

Check to see if there's a difference between users dialing into unity via a local gateway or over a wan connection.

Hope that helps.