- Make sure this fits by entering your model number.
- 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
This fits your .
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.