Valcom V-2901A Door Answer Device - Single Jack That's up to 1/3 of

That's up to 1/3 of an acre

If you have an existing wireless broadband network

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Valcom V-2901A Door Answer Device - Single Jack That's up to 1/3 ofSingle door answering device Push a button to initiate two way communication from the door speaker to telephone, then dial a programmablecode to unlock the door Activates door locks Door unlock contact closure (strikeplate required) Alarm functions Transmit and receive volume control Background music input with volume control Built in ring generator with on off switch 3 Distinctive ring patterns Programmable options include door unlock codes, number