Videx 2 Button 3000 Series Digital Audiophone with Electronic Call Tone and Mute Switch
The 3172 digital audiophone incorporates a 3 level call tone switch, mute switch, lock release button and spare service button. For use on the VX2200 digital system. - Includes lock release button, spare service button and mute switch. - 3 level call tone switch. - Manufactured from impact resistant ABS plastic.