Zero Downtime Upgrades - An upgrade approach to avoid late nights
Zero-downtime upgrade approach for Cisco VOS apps (CUCM, Unity, UCCX) using refresh upgrade and switch-version to skip overnight maintenance windows.
Posts tagged: Cucm-Upgrade
CUCM upgrade from 9.x to 11.x - Short post
Finishing an upgrade project after being a while since doing one, I wanted to take the time to share the experience and how easy has Cisco made it into …