×

ISDN credit checking

  • US 5,313,463 A
  • Filed: 03/25/1993
  • Issued: 05/17/1994
  • Est. Priority Date: 11/15/1990
  • Status: Expired due to Term
First Claim
Patent Images

1. A method for validating credit information, the method comprising the steps of:

  • receiving the credit information from a customer on a B-channel of an ISDN facility at a business terminal;

    sending the credit information on a D-channel of the ISDN facility to a telecommunications network;

    validating the credit information provided by the D-channel of the ISDN facility;

    providing a result of the validation from the telecommunications network on the D-channel of the ISDN facility; and

    receiving a result of the validation from the D-channel of the ISDN facility at the business terminal;

    where said credit information and said result are embedded within a respective D-channel signaling message to and from the telecommunications network.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×