Single and multi-tenant hands-free entry audio only security intercom with door release built into the door station. 

FEATURES 
* Up to 5 stations per door call button
* All Call between stations in same residence
* Internal communication can be hands-free (VOX) or push-to-talk (PTT)
* Door release powered by door station without the need of an additional transformer
* Call tone volume control with mute indicator
* Receive volume control
* Optional Call Extension Sounder
* Backlit directory at door
* Simple two-wire connection for intercom and door release (Door strike wires directly to door station)
* 1, 2, or 4-call door stations for individual or multi-tenant applications

Please Note : For every 2 room stations a T1615 power supply is required. A T1615 is included in the Aiphone DB Series Intercom Kit.