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Telephone travel card system under the control of its customers

DC CAFC
  • US 6,295,344 B1
  • Filed: 07/31/1998
  • Issued: 09/25/2001
  • Est. Priority Date: 05/31/1989
  • Status: Expired due to Fees
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 producing call data concerning calls from at least one communication sources;

    switching computer means capable of processing the call data, said switching computer means controlling said switch processor;

    communication means capable of capturing the call data including automatic numbering identification and a personal identification number;

    said communication means capturing the call data at a front end of a call and supplying the captured call data to the switching computer means, and capable of supplying processed data from the switching computer means to the switching station; and

    said switching computer means capable of directing the switching station through the communication means to prevent completion of an attempted call using a travel card from a location indicated by the call data of the attempted call that a caller would not have been able to travel to in the time between the attempted call and an immediately preceding call using the same personal identification number.

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