Just in case this helps somebody else keep their remaining hair intact...
Migrating an ATA 186 to CUCM 9.x requires the ATA to be running firmware ATA030204SCCP090202A
I've just spent a few hectic hours trying to work out why I couldn't migrate some ATAs from an old 4.x cluster to a shiny 9.x one. The ATAs were running version ATA030203SCCP051201A on the old cluster. ATA would get its config file from 9.x once I updated DHCP option 150, but then immediately registered with the old cluster.
As soon as I upgraded the ATAs to the new version, all worked properly. I'm assuming there's something in the XML file servered by 9.x that the old firmware doesn't understand...
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...