This upgrade is from 4.0.4 in an isolated domain with on-box install of Exchange 2000.
end state wants to be Unity 5.0 on new hardware pointed to a currently-existing Exchange (2003) on an already-populated AD forest (Windows 2003) with all current Unity settings/etc. transferred.
I have some upgrade guides from Cisco, but nothing goes in to all steps required for an upgrade of all aspects (hardware, Unity version, Exchange version and to a NEW Exchange org/AD Forest) all in the same migration.
Who wants to help with sequencing this?
Actually did one like that last week. Worked good. I call it the "swing" model. The swing server in VM works great for upgrades, etc.
But I used Cobras. I setup the new server as 5.01 and had it all tested and running perfect. Then I just used Cobras from the VM 4.05 to 5.01, re-ran permissions and mailbox and worked out good.