If the call disconnects when it's answered, then it's either a codec negotitation or MTP allocation issue. Do you know if these calls are using an MTP? Is "MTP Required" checked on the SIP trunk in CUCM? For the debugs, what are the calling and called party numbers for the failed call? What are the inbound and outbound dial-peers which are suppose to be matched for the call? What is the region configuration, in CUCM, between the IP phone and SIP trunk?
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...
[toc:faq]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 discusse...