[cisco-voip] Unity upgrade annoyance - VM ONLY

[Jonathan Charles]

We had a customer who was on a VM-only Unity 4.0(3), they got a new
server and we upgraded them to 5.0

We find out after the fact that they were using IMAP to talk to
another Unity server in the network. This feature was pulled from
Unity in 4.0(5) and customers were advised to purchase a VPIM license
($8500 per node)

The customer was pissed.

So, what we are planning on doing is blowing away the other Unity
server and joining it to the stand-alone domain of the Unity 5.0
server.

Here are the steps I am planning:

Backup Existing Unity 4.0(3)
Pull Hard Drive
Upgrade existing Unity to 4.2
Backup
Pull Backup from box
Install Windows 2000 Server on Unity
Join to the Unity 5.0 domain
DcPromo to make it a DC
Install Exchange 2003
Install SQL 2000
Install Unity 4.2
Restore Backup

Now, my question is this.

If I have two Unity servers (5.0 and 4.2) in the same domain, using
the same message store, how would users send vmails to each other (on
different servers)? Is there any special licensing or will the Unity
servers just find each other? Any special configuration? Any gotchas?
Should I be fearful for my career?



Jonathan