BFT-240SW Indoor Station Audio Comfort AP i2Audio black. Audio indoor station comfort for intercom system according to DIN EN 50486 using i2Audio technology. Indoor station for hands-free operation (without handset) for wall mounting with touch sensor buttons featuring symbol displays and cleaning mode. 9 function buttons with LED: Talk On/Off, door opener, light, call reject. Fully adjustable full- or half-duplex operation, 4 function buttons programmable for special functions. 16 harmonic call tones, free assignment of call tone melody to distinguish between door, floor, or internal calls, electronic adjustment of call tone and button tone volume. Call tone melody can be turned off with LED indicator and optical status display. Half-duplex speech mode adjustable temporarily or permanently. Knocking function during active connection, listening muted, and automatic call termination after 3 minutes. 4 special functions programmable: e.g. manual internal call activation for internal conversations, call forwarding to additional indoor station(s), parallel call function (calls to another indoor station are signaled), internal call connection with other indoor stations without their call acceptance, Portamat for floor call and door call adjustable, relay switching function, door opener direct function for opening without incoming call. Changes to special functions can be locked via DIP switch, and light button for staircase or courtyard lighting. Connection for floor call bell button and floor call forwarding via parallel indoor stations. Parallel connection of up to 3 indoor stations. Also suitable for mounting on device box according to DIN 49073. DREHFIX function: Single-person commissioning via addressing with rotary coding switch.