I have a intermittent problem withe a client using MCD on a 3300 with NuPoint (on MAS) as their voicemail.
Users accesses their personal voicemail, via a one touch key pointed to the voicemail hunt group. They are prompted to enter their password. Once they have entered their password they hear the recorded greeting for x300, after it plays they are inside their mailbox and can listen to their messages. x300 is the attendant mailbox.
Again this doesn't happen every time only intermittent but it does happen from pretty much every phone on the system.
Note: I have verified the the MWI port is set to DND - Permanent