Hearing-impaired audio intercom CLASSE100 A16E2 wired bus system with hands-free intercom. In addition to the two physical buttons for answering and ending calls, it features sensor buttons for opening the door, turning on the stairwell light (Activator item no. 346210 required), and switching the door station on or off, as well as freely configurable additional buttons such as internal communication and an extra door opener. There are 16 melodic ringtones to choose from. Includes a doctor call function and door intercom feature with call distinction. The ringtone volume is adjustable via a side knob. An LED display indicates ringtone deactivation, door opener, and connection status. Installation is surface-mounted using the included wall bracket. A table accessory (item no. 344692) is available separately. Connections for BUS, floor call, and additional bell. Dimensions: D: 102 mm, W: 155 mm, H: 18.5 mm.