VIDEX 3101 Universal Handset With Electronic Call Tone & AC Buzzer 2 Button

This Videx 3101 full base audio phone has an AC buzzer input, adjustable electronic call tone, a door open push button and a spare service button. It is suitable for use on traditional 4+1 audio systems that require an AC buzzer call or an electronic call tone including the 4k series, 8K series, VR4K series and VR120DK series kits.