Ver 10 and 10.5 design guides indicate Exchange (no version) under premium licence guide. While ver 9.x indicates 2003,2007 and 2010.  I see no answer in this forum. I guess its off to the LAB ... If Cisco could reply would save me some time and cust...

I suspect you need a MTP defined in the gateway configuration on the call manager

. You also have to delete users off the old unity prior to importing them on the new server. I'm assuming you are using exchange as a VM store. be sure to select the new integration on the subcriber template prior to importing

use uniquie dns names for your callmanagers.exs cm-pub.domain.local and cm-sub.domain.local. set up a call manager group in call manager and place both call managers in that group and assign it the device pool that the phones are using. You should se...