I need some help on upgrade on CUCM 7.x to CUCM 11.5
Currently our client have an existing 590 DLUs which following phone
Cisco 6921 x 38units --> Convert to 38 Basic licenses
Cisco 7911 x 100units --> Convert to 100 Enhance Licenses
Cisco 7940 x 2units --> Convert to 2 Enhance Licenses
Cisco 7942 x 22units --> Convert to 22 Enhance Licenses
DLU usage : 510
Available DLU : 80
Here are my questions
1.) Can I upgrade it direct from version 7.x to 11.5 ?
2.) Which SKU that used to upgrade from version 7.x to 11.5 ?
Is it UCL-UCM-UPG-K9 ?
3.) How to migrate from 7.x to 11.5 can we use PCD ?