Upgrade Procedures
![]() Note |
If your pre-upgrade version is Release 11.5(1)SU8 of Cisco Unified Communications Manager and the IM and Presence Service, you cannot upgrade to Releases 12.0(x), 12.5(1), or 12.5(1)SU1. The minimum Release that you can upgrade to is 12.5(1)SU2. |
For detailed procedures on how to upgrade your system, see the Upgrade and Migration Guide for Cisco Unified Communications Manager and IM and Presence Service, Release 11.5(1) at the following URL: