This is probably a no-brainer for most of you. I have just installed a Partner ACS 6 for a customer. They have Partner Messaging. 6 extensions and 30 phantom mailboxes. When I was testing the system this evening, I found that I receive a busy signal when dialing the phantom number. Am I mistaken to have expected the VM to pick up? Obviously there's no phone to actually ring. Also tried using a programmed Direct to VM button followed by the Phantom #, and this did not work either.