×

Telecommunications fraud detection scheme

  • US 5,504,810 A
  • Filed: 09/22/1993
  • Issued: 04/02/1996
  • Est. Priority Date: 09/22/1993
  • Status: Expired due to Term
First Claim
Patent Images

1. A method comprising the steps of:

  • analyzing echo characteristics of a path of a telephone call to determine whether the telephone call is a multiple-leg call;

    collecting data representing attributes of the telephone call when the echo characteristics indicate that the telephone call is a multiple-leg call; and

    processing the data to generate an indication of whether the telephone call was established fraudulently.

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