Typically, if you are going to do a phased migration, you would use Digital Networking. Since you can not use Digital Networking with Untiy Connection (currently, but with 8 you can) you will most likely have to do this in one swing.
I would recommend the following:
Bring up Unity Connection 7.x
Create a new port group, hunt list etc for CUC in CUCM so you can use it for piloting.
Use Cobras and Export a few test users, call handlers, etc from CUC 1.3 and import to CUC 7.x.
Just to be clear, there was no CUC 1.3 release... I assume you mean 1.2? If so then COBRAS as noted above will work fine - if instead you mean 1.1 or 2.x then you can't - COBRAS only works with 1.2 releases or 7.x and later.
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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 ...