I'm having the same problem with a 7936. After changing from CCMExpress to CUCM 7.1(2a) all phones register and update to the new CUCM, only the 7936 wouldn't register (could not contact tftp). But it could, I sniffer the traffic, DHCP (also from CUCM) works and the phone get its configuration file from exactly that tftp, but it would take the offered callmanager. (Phone is HW 2.0 and SW 3.2.20)
If nobody has an idea for it, I would open a case for this issue.
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...