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Automatic number identification blocking system

  • US 5,161,181 A
  • Filed: 01/10/1990
  • Issued: 11/03/1992
  • Est. Priority Date: 01/10/1990
  • Status: Expired due to Term
First Claim
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1. Apparatus, whose use in a telephone network which automatically transmits calling party identification and called party identification and which offers a blocking service by transferring a telephone call from a calling party which utilizes the blocking service, along with the calling and called party identifications, over the telephone network to the apparatus, causes blocking of the automatic transmittal of the calling party identification by the telephone network from the calling party'"'"'s central office to a called party, the apparatus comprising:

  • one or more network line interfaces, any one of which may be used for receiving the telephone call from the calling party which was transferred over the telephone network in response to commands from a controller means;

    one or more network line interfaces, any one of which may be used for placing a call to the called party over the telephone network utilizing the called party identification in response to commands from the controller means;

    one or more voice and data processing means, any one of which may be switchably interconnected to one of the receiving one or more network line interfaces and to one of the placing one or more network line interfaces;

    (a) for obtaining the called party identification transmitted by the telephone network, (b) for transmitting the called party identification to the controller means, and (c) for transmitting signals to the one of the placing one or more network line interfaces or to the one of the receiving one or more network line interfaces, all in response to commands and information sent thereto from the controller means;

    a connection and switching means for connecting and switching one of the receiving one or more network line interfaces to either one of the one or more voice and data processing means or to one of the placing one or more network line interfaces;

    wherein the controller means comprises means which causes the apparatus;

    (a) to receive the transferred call from the calling party at one of the receiving one or more network line interfaces and to obtain the called party identification by interaction with the one of the receiving one or more network line interfaces, one of the one or more voice and data processing means and the connection and switching means;

    (b) to place a call to the called party by interaction with one of the placing one or more network line interfaces, one of the one or more voice and data processing means, and the connection and switching means;

    (c) to connect the calling party and the called party by interaction with the one of the receiving one or more network line interfaces, the one of the placing one or more network line interfaces, and the connection and switching means --whereby the automatic transmittal of the calling party identification by the telephone network to the called party is blocked;

    (d) to detect whether the calling party or the called party has gone on-hook by interaction with the one of the receiving one or more network line interfaces and the one of the placing one or more network line interfaces; and

    (e) to terminate the call between the calling party and the called party when either the calling party or the called party has gone on-hook by interaction with the one of the receiving one or more network line interfaces, the one of the placing one or more network line interfaces, and the connection and switching means.

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