Valcom V-2901A Enhanced Single Door Access Control System - Automatic Door Lock Activator for Home & Office Security (White) | Ideal for Apartments, Gated Communities & Business Entrances

The V-2901A, Universal Door Answering System, when used with Malcom Doorplate Speakers, provides voice paging with hands free reply to a door from any telephone location.

Door unlock contact closure (strike plate required)

Alarm functions

Transmit and receive volume controls

Background music input with volume control

Built-in ring generator with on/off switch