Number of acoustic call distinctions: , 4 (of which up to 2 from external stations), Voice transmission: Hands-free / intercom , can be activated, Number of selectable ring tones: 13, Automatic hands-free after internal call: , activatable, privacy function: yes, automatic call silencing: yes, ringing tone silencing: at call OFF button, ringing tone volume: adjustable, conversation volume: adjustable, door opener function: at door opener button, light switching function: at light button, control function: at function button, parallel call: activatable, internal call: activatable, automatic door opener function: activatable, call forwarding: activatable, storey door opener function: activatable, LED (red): Call silencing, LED (green): Door and internal calls (short-term storage), , Occupied display, Functionally expandable: Radio signal device, Mounting form: Surface mounting on flush-mounted box, Housing form: Surface-mounted housing, Housing material: Plastic (ASA), Housing colour: White, Mounting plate: Can be pre-installed with plugged , Screw terminal, Number of wires: 2- or 3-wire possible , Installation mix audio, video, Access in one system: , possible, Error indication: optical / acoustic , (sum error indication on both LEDs), Commissioning and configuration: manual, with service device, with configuration software , Technology: 2-wire TCS:BUS, Current consumption, at rest: 1.72 mA, Current consumption, maximum: 14.98 mA, Surface-mounted housing HxWxD mm: 105x94x17, Permissible ambient temperature: -5 to +40 degrees C, Protection class: IP20,
