Yes, that's the problem i.e. you cant do direct upgrade from CUE 2.x to 7.x, it has to be phased upgrade. Following table shows from which version, you can upgrade to 7.4. This is found in CUE 7.4 Release notes Guide.
Table 7 Cisco Unity Express Software 7.4.x Upgrade Process Matrix
Upgrade For CUE on AIM-CUE From Release
soft inst. upgrade soft inst. clean boot helper
Further, if you review CUE 3.2 Release notes guide , you will realize you need to reach to 2.2 first from 2.1. So your upgrade path becomes 2.1 >> 2.2 >> 3.2 >> 7.4. appears painful & further i am not sure if you will get these upgrade softwares as they must be end of sale already.
From a very recent experience of mine on similar requirement, I learnt from BU that " CUE 2.0/ 3.0 is a very old release and I would suggest you to configure the new module fresh. There have been some bugs in this area from my experience esp. when it relates to very old releases. With 7.0+ I am more confident that the backup would work without issues.”
Hence the recommendation is against the Backup/Restore approach. Better to put some time upfront to configure manually than to chase down issues later (unless the customer really really wants the old voicemails restored).
Hope it helps ?
Pls rate helpful posts by clicking on stars below the post !!
i see the Relase note , but i dont know way like this , i need make freash install (clean) i have only file for 7.4.1 , i dont now how can i get other 2 version files , it's really hard job on AIM-CUE.
The short answer is that you don't.... That isn't entirely true while at
the same time it kind of is, but for the most part you don't configure
the softkeys. You enable or disable them via TCL. Here is the long
answer. Be sure to read the whole thing or e...
Topology: IP Phone > Switches > Microsoft NPS setup to forward 802.1x
proxy to > ISE 2.1 patch 3 Authentication: EAP-TLS using Cisco MIC SANs
Phone Models 802.1X support? 802.1x flavor Addtl Comment EAP-MD5 EAP-TLS
Cisco 3905 Y Y N Cisco 6911 Y Y N Cisco ...
This document describe how DST changes and how time changes are
implemented in DST. Daylight Saving Time (DST) is the practice of
setting the clocks forward 1 hour from standard time during the summer
months, and back again in the fall, in order to make b...