BFT-210WS Indoor Station Audio Standard APi2Audio in White. Audio indoor station for intercom systems according to DIN EN 50486 in i2Audio technology. Indoor station for hands-free communication without a handset, designed for wall mounting with touch sensor buttons and symbol displays, as well as a cleaning mode. Function buttons with LED: Talk on/off, door opener, light, and call cancellation. Full or half-duplex operation adjustable. 16 harmonious ringtones, free assignment of ringtone melodies to distinguish between door, floor, or internal calls, electronic adjustment of ringtone and key tone volume. Ringtone melody can be turned off with LED control display and optical status indicator. Half-duplex speaking operation can be temporarily or permanently set. Call waiting function during an active connection, listening disabled, and automatic call disconnection after a few minutes. Special function: Internal call for internal conversations at addresses FF and FE. Light button, e.g., for stairwell or courtyard lighting. Connection for floor call bell button and floor call forwarding through parallel indoor stations. Parallel connection of a maximum number of indoor stations. Also suitable for installation on device boxes according to DIN 49073. DREHFIX function: One-person commissioning through addressing with rotary coding switch.