×

Telephone line communications control system

  • US 4,907,260 A
  • Filed: 06/05/1989
  • Issued: 03/06/1990
  • Est. Priority Date: 10/05/1987
  • Status: Expired due to Fees
First Claim
Patent Images

1. A telecommunications control system for selectively networking a plurality of multi-purpose telephone stations for use as attendant stations in an attendant service complex to service calls directed to the system from originating stations, the system comprising:

  • first controllable means comprising a plurality of outgoing line connection controllers, each outgoing line connection controller for cooperating with a respective one of a plurality of multi-purpose stations in defining opposite ends of a call connection path;

    second controllable means comprising a plurality of incoming line connection controllers, each incoming line station connection controller for cooperating with a respective one of a plurality of originating stations in defining opposite ends of a call connection path, and each including means for detecting a ringing signal indicating a request to establish a call connection path for an incoming call;

    third controllable means comprising a plurality of controllable inter-connection means, each arranged between an incoming line station connection controller and an outgoing line station connection controller;

    fourth controllable means for originating calls from the system to the multi-purpose stations via the outgoing line station connection controllers;

    means for controlling the first, second, third, and fourth controllable means in a predetermined sequence of operations initiated by the detection of a ringing signal, in which sequence of operations a call is originated to a multi-purpose station while the ringing signal is present so as to be unnoticeable to a person using the originating station, and after completion of the call to the multi-purpose station, the call is answered and extended to the multi-purpose station by completing the incoming call at the incoming line station connection controller and extending the call to the outgoing line station connection controller via the inter-connection means; and

    means for providing security against use of any of the multi-purpose stations within the attendant service complex by an unauthorized person, the means for providing security including means for controlling the outgoing line connection controller means to open the call connection path and release the multi-purpose station.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×