The Valet Desktop Station is a component of the Valet System One Intercom System, which is a selective call intercom system. This means that each room station acts as a master station, allowing the user full control over all of the intercom functions directly from the room station. The S1DTB uses Cat 5 wire and is designed to sit on a desktop or other flat surface.The S1DTB features an auxiliary audio input for portable music devices, room to room communication with a privacy feature, an all call function which allows you to communicate with all of the room stations at once, and monitoring capability (great for nurseries or an elderly parent's room). This desktop station also features hands free door communication between the visitor and the resident. The S1DTB offers auto programming. Once the programming is finished, the room stations will reset in the event of a power failure.