| Change Control Event | ACH The purpose for change is to Upgrade Cisco CUCM from version 12.5SU7A to version 14SU4A. | Change Control Event | ACH The purpose for change is to Upgrade Cisco CUCM from version 12.5SU7A to version 14SU4A.CHG0077660 2024-07-13 08:00:00 – 2024-07-13 22:00:00ACH The purpose for change is to Upgrade Cisco CUCM from version 12.5SU7A to version 14SU4A.