I have a couple of 7920 phones that keep re-registering with Call Manager. AP authentication and DHCP work fine. Once the phone comes up, it registers with CCM. I can place and receive calls on the phone. After a couple of minutes, the phone shows it is registering with CCM again. If I'm on a call, the call gets dropped and the phone shows 'Call Manager down'. The 7940 phones on the network are not having any issues.
We are using CCM 4.2(3) and the firmware on the phone is 7920.4.0-03-00.
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...