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Upgrade from CUCM to 8.5 vmware ESXI

Question asked by alaayehya on Oct 23, 2012


I have CUCM 6.0 on below Cisco Hardware compliance


Platform Type7828I3
Processor Speed2130
CPU TypeIntel(R) Core(TM)2 CPU 6400 @ 2.13GHz
Memory6144 Mbytes
Object ID1.
OS Versionoperatingsystem.UCOS3.0.0.0-60


now we are moving everything to virtualization environment.


we have vmware ESXI and we need to upgrade CUCM to virtualized CUCM 8.5.


what are the steps to do that?

what about licenses?

how the upgrade will be done?

can i upgrade to 8.5 or no i have to upgrade to 8.0?

do I need to upgrade the firmware of phones,voice gateway


please anybody can help me doing that step by step?