Audio house station with handset CLASSE100 A16M2-wire bus system, has 3 sensor buttons for: opening the door, switching on the staircase light (activator order no. 346210 is required) and switching the door station on or off as well as 4 freely configurable additional buttons (e.g. internal speaking, additional door opener, etc.). 16 melodic ring tones can be set. Incl. doctor connection/door automat function. For door/floor call with call differentiation. The volume of the ring tone is adjusted using the side control. LED display for: ring tone deactivation and door opener status. Surface mounting using the wall bracket supplied. A table accessory (order no. 344692) is available separately. Connection for BUS, floor call and additional bell. Dimensions W × H × D: 102 × 169 × 29 mm