Nate.Dixon,
Create a Call Routing Announcement under Voice Processor > Devices > Applications
Delete the Day and Night Default Recording
Set the Timeout under Digit Translations to Transfer to Mailbox and then in the next column put in the extension of the mailbox you want it to go to.
Go to your Hunt Group and put in the extension number of the newly created CRA in the Recall field
Set the Timer for Recall to be whatever you want it to be before going to the mailbox. Keep in mind that every 6 seconds is a ring cycle on a Hunt Group.
Thanks,
TE