Monday, May 18, 2015
Cisco CUCM: Upgrading The Phone System
Cisco has made it pretty easy to do upgrades. In this example, I'm doing a minor upgrade from 8.5 to 8.5.1-17900, so that I can do a restore from the production backup I took. You have to go into OS Administration, then choose software install/upgrades. Its pretty easy from there. You just get your SFTP server going, put the ISO file in the correct directory, and do the upgrade.