Single Door Answering Controls
Provides Two-Way Communication
(Does Not Provide Door Unlock Capability)
Built-In Talkback Amplifier
Ring Generator
Transmit & Receive Volume Controls
Door Answering Controls -
Activates Locks
Door Unlock Contact Closure
(Strikeplate Required)
Transmit & Receive Volume Controls
Alarm Function Input
Background Music Input with Volume Control
Built-In Ring Generator with On/Off Switch
3 Distinctive Ring Patterns
Programmable Options Include:
- Door Unlock Codes
- # Ring Cycles Before Door
Request Terminated
- Time Door Remains
Unlocked
(Per Door)
Push a button to initiate two-way
communication from the door
speaker to the telephone.
Once the visitor is identified, dial a
programmable code on the telephone
to unlock the door.
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800-VALCOM-1
(800-825-2661)
• www.valcom.com
Single Door
Answering Control ................ V-2900
Single Door
Unlocking Control ...............V-2901A
Four Door
Unlocking Control ................. V-2904
Door Entry
Security Systems
One & Four Door Controls
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Telephone Access Method:
PBX Loop Start Trunk Port
Electronic Key Line Position
Dedicated Single Line Phone Set
PBX Ground Start Trunk Port
Page Port (Telephone System
Dependent)
Centrex or C.O. Line
PBX Analog Station Port
(Loop Disconnect Required)
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