The GT-2H is an audio/video tenant sub-master station for the GT-2C master station. It is equipped with a Talk, Door Release, and optional Service Button. Up to three of the GT-2H sub masters can be added to a GT-2C master giving the tenant station-to-station communication ability. When a visitor calls, the tenant stations ring and video is present. The call is answered by one touch of the Talk button. A handset (GT-HS) can be added to the unit if additional privacy is required. The unit features a 3.5" color LCD monitor and a PTZ control button for the camera.