Scaine, you are close but not quite on.
"Unified messaging" (in the gospel according to Cisco) means that your voicemail, email and faxes go to a single place and that, given the right client, you can view them all in one place too.
In Unity's case, you need to use Exchange or Domino as the back end "messaging server", which stores email (duh) and also voice messages and faxes. The voice messages and faxes show up in your email client (Outlook/Notes) as a different file, and play as wav files.
The other thing about Unity is that it ties into existing voicemail systems (usually during migration). So you can have some users on Unity and some users on Octel or whatever.
Finally, Unity does NOT come in two flavors. You buy Unity and that's it. What you can do is set up subscribers (users) as either VM-only or Unified Messaging.
Finally Finally, you can also set up subscribers who don't have exchange/domino accounts. in that case the admin puts in their internet address and Unity emails them a wav file, but then it doesn't get stored anywhere. if they delete the email, they are sunk.
Hope that is more than you ever wanted to know.
Leon
Leon Adato (adatole@yahoo.com)
Measure what is measurable,
And make measurable what is not so.
- Galileo