DuVoice will interface with the hotel's PMS system, when they check in a guest, it changes the IPO configuration to put in the guest's name, so when they call to the front desk you can greet them by name. It removes the name when they check out. It bars the phone when the room is unoccupied, and turns it on when checked in. The mailbox is cleared upon checkout, so you don't have to go in and check for messages and clear them when a guest leaves. DuVoice themselves supplies the computer that it runs on, and their professional services will handle the integration to the hotel's PMS, so you just handle the IP Office programming.