As Aaron stated you probably find your CMC servers do not support 6.x so normally you carry out a DMA and then build a new Cluster running 6.x . Create ICT between the two to make sure everything is running ok and the use the result of the DMA received back from Cisco to transfer the "4.x config." to the new 6.x cluster.
Depending on the size of the Cluster and the numbers of handsets it may be best to turn off the old cluster and then re- IP address the 6.X to be the the same as the 4.X - that way you do not need to change the DHCP Option 150 settings or other other applications pointing the IP address of your cluster. Check the version of 6.x which one support IP address change
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...