If you are using an IPedge app server for the VM and ACD you can use cascading messages which will put any messages in the mailboxes of your choice and when you delete the message from one mailbox it deleted it from all mailboxes. I used to use this all the time on one of my systems.
I think for ACD this is a good suggestion, having a voicemail box for the ACD group. This way you have a separate voicemail message. ie.. "Thanks for calling the customer service department...", instead of "Hi, this is Julie..."
Cascade voicemail makes it much easier to do group mailboxes. I really didn't like setting up group mailboxes in Stratragy/
