You need to provide us with a little more information. Please post the entire config minus passwords.
Typical problems point to using the wrong compression for the voice. Are you using G711 or G729?
Another common error is that you must also have a bandwidth statement on the serial interfaces. Without a bandwidth statement, the software believes that it has the default bandwidth for the interface, 1.544mbps and it does not see any congestion problems.
The third is that for such a slow link, it would be good to emulate frame-relay so that you could do fragmentation of the large data packets.
The first problem I see is that you are using the "Bandwidth" command instead of the "priority" command. The priority command will create a strict priority queue for the voice traffic, so queue latency is reduced.
SIP traces provide key information in troubleshooting SIP Trunks, SIP
endpoints and other SIP related issues. Even though these traces are in
clear text, these texts can be gibberish unless you understand fully
what they mean. This document attempts to br...
Please find the attached HTML document, download and open it on your PC.
This provides an easy to use form where you simply answer a few
questions and it will render the proper jabber-config.xml file for you
to copy/paste. There is built in logic to verif...
CUCM Database Replication is an area in which Cisco customers and
partners have asked for more in-depth training in being able to properly
assess a replication problem and potentially resolve an issue without
involving TAC. This document discusses the bas...