Elevator communication devices, systems and methods

Details Elevator communication devices, systems and methods Elevator communication devices, systems and methods

2005-12-06

2005-12-06

Salata, Jonathan (Department: 2837)

Elevator, industrial lift truck, or stationary lift for vehicle

Having computer control of elevator

C187S391000

Reexamination Certificate

active

06971480

ABSTRACT:
A device for facilitating communications between an elevator passenger and a person outside of the elevator through use of an elevator telephone. The device includes a service port configured for connection to a telephone company feed line and an elevator telephone port configured for connection to an elevator telephone. The elevator telephone port is selectively coupled with the service port through a first switch that is configured to isolate the service port from the elevator telephone port upon receiving a first signal. A supervisor port is configured for connection to a supervisor telephone. A second switch is configured to facilitate electrical coupling between the elevator telephone port and the supervisor port upon receiving a second signal. A control circuit is configured to provide the first and second signals in response to an activation command, and a ring circuit is configured, as directed by the control circuit, to cause an elevator telephone connected to the elevator telephone port to ring. An elevator system and a method are also provided.

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