I am to do test in my laboratory with the version 4.1.3 and did the following setup:
CallManager Publisher - 02 IP Phones
CallManager Backup - 02 IP Phones
I configured two CallManager Group to divide the register. CallManager Publisher - Group 1 and Group 2 (Preference)
CallManager Subscriber - Group 2 and Group 1 (Preference)
I Configured two Device Pool and associated and the IP Phones, but, the IP phone are registring only CallManager 1, when I did shutdown the CallManager Publisher the IP Phone did registered in CallManager Subscriber.
My Questions is: Are are another configuration to do?
OK, so I assume here that you are telling me that the TFTP file has both CCMs listed, and that if you look in the phone settings it displays both CCMs.
Have you activated the CCM service on both servers? Check in the service control panel that 'Cisco CallManager' is running.
And... . did it work?
Did you pull the TFTP file?