fishhead64,
No it doesn't push anything through as that would defeat the point of AD.
I have never seen it used on just one product and not the other so I doubt it will go without a hitch if it isn't setup that way.
What I have seen during the installation process of the MiCC is that you can use Basic Authentication or Windows Authentication.
Basic Authentication uses what is programmed in the Users Profile.
Windows Authentication uses what is configured in your Windows AD.
Setting it up after the fact can be done, but I haven't done it without configuring it for MiCollab as well.
As for what could go wrong if you don't, I am not sure, but my best guess is that since it has to match employees to what is configured in the MiCC which gets its information from the MiVB which gets its information from the MiCollab there could be issues.
I think I have a best practice document from Mitel on this, but it is a pdf and I can't post those here. This is usually where you will want to get your Mitel VAR involved to help with setting this up.
Thanks,
TE