a simple search on cco for "cme upgrade" returns the procedure, very first link you get
Installing and Upgrading Cisco Unified CME Software
http://www.cisco.com/en/US/docs/voice_ip_comm/cucme/admin/configuration/guide/cmeinstl.html
Cisco Unified CME and Cisco IOS Software Version Compatibility Matrix
http://www.cisco.com/en/US/docs/voice_ip_comm/cucme/requirements/guide/33matrix.htm
make sure to check the requirements for the version you want to see if your ISR supports it.
HTH
java
if this helps, please rate
HTH
java
if this helps, please rate