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Telephone travel card system under the control of its customers

DC CAFC
  • US 5,790,636 A
  • Filed: 09/01/1994
  • Issued: 08/04/1998
  • Est. Priority Date: 05/31/1989
  • Status: Expired due to Term
First Claim
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1. A telephone system of a type controllable by travel cards, comprising:

  • a switching station including a switch processor capable of receiving call data from at least one dial-up communication source and a switching computer means capable of processing call data;

    said switching computer means controlling said switch processor;

    communication means capable of capturing call data received by said switch processor, said call data including automatic number identification and a personal identification number;

    said communication means capturing call data at front side of the call data received by the switch processor and supplying said call data to the switching computer means, and capable of supplying processed data from switching computer means to the switching station;

    said switching computer means capable of obtaining data for at least one parameter related to a travel card in addition to said call data for the switching computer means to act upon in processing call data and determining from said data from the front side of the call data and additional parameter whether the attempted call is placed by a caller in good standing in accordance with parameters for the travel card;

    said switching computer means capable of disallowing completion of a call through the switching station if determined from processing of call data and additional parameter by the switching computer means that the call is not placed by a caller in good standing; and

    said switching computer means capable of interrupting and terminating said call in progress through the switch processor if said switching computer means determines by data processing that the available account status of the travel card has been reached during the call.

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