The TwinBus IP indoor station serves as a digital 2-wire video/audio communication unit in the TwinBus IP system. The 7-inch touchscreen with a black front design can be mounted horizontally or vertically. Wall mounting is done surface-mounted in front of a flush-mounted box or alternatively directly on the wall. The corresponding mounting plates are included in the delivery. The power supply is provided via the TwinBus IP power supply unit REG. When using up to three additional indoor stations, an additional power supply is required. The wiring is done via 2 pluggable, labeled terminal blocks on the back of the device. In addition to HD video and audio communication with the door station, internal conversations between up to 3 additional indoor stations (audio only) are possible. The integrated WIFI function allows communication with the TwinBus IP app, enabling door calls to be received on mobile devices while on the go. An info LED built into the front of the device informs about missed door calls or the activated device mute.