Patent ID: 7697674
Filing Date: 2010-04-13
Classification: G07C

Abstract:
1. A security system comprising: a secured entry apparatus comprising, an intercom, a transceiver coupled to the intercom, the transceiver being configured to transmit electrical voice input signals over a wireless communication channel and receive electrical voice output signals and control commands from the communication channel, and a control unit configured to generate control signals in response to control commands; and an intercom/telephone interface device comprising, a communication transceiver configured to communicate with the transceiver via the communication channel, a control circuit coupled to the communication transceiver, the control circuit being configured to determine a device operating mode status based on call origination data, the device operating mode status including a telephonic communications mode and an intercom mode, and an interface circuit coupled to the control circuit, the interface circuit being configured to propagate voice telephony signals between the at least one telephone set and a telephony network in a telephonic communications mode and propagate voice intercom signals between the at least one telephone set and the communication transceiver in the gate intercom mode.