if you are running version 6.1(5) then you can use PCD to upgrade directly to 11.5
This will be a Migration from the MCS7800 server to a Virtual Server
Note : BE3000 and BE5000 deployments are not supported via the PCD upgrade method
Hi
Why dont you use Cisco Prime Collaboration , this will migrate your hardware to UCS and upgrade the software automatically.
http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/pcdadmin/11_0_1/CUCM_BK_PB6D9005_00_pcd-administration-guide-110/...
You will need to download the new RSA keys from Cisco ciscocm.version3-keys.cop.sgn
Once you load this on your CUCM you will be able to upload the new firmware.
http://www.cisco.com/c/en/us/support/docs/unified-communications/unified-communications...
