Dear All
I have three server (one publisher and two subscribers) , i would like to upgrade CUCM from 4.2 to 9.1 to two UCS 7000 business edition M3 , and i read Jump-flash cut steps to UCS pdf , my Questions :
- to upgrade three servers publisher and two subscribers parallel how it will be ?
- to upgrade from 4 to 9 ,i need to get the backup by dma from 4 to 7.1 then apply or restore UCS ( 7.1 installed on it ) , what is the dma name i need for this step
- instead of going to follow upgrade steps (long story) , can i get backup from version 4 by BARS and prepare it in CSV file then in UCS version 9.1 i can put all phones 1200 phones by BULK file , in other words install immedialtly version 9 on UCS then use BULK file to add phones. it is ok ? any recommendations or concentrations about that ?
I am waiting your updates ASAP
thanks and regards