Patent ID: 6038440
Filing Date: 2000-03-14
Classification: H04W

Abstract:
A method for processing calls in a wireless communications system, the method comprising the steps of:detecting a call placed from a mobile station in said system to a multi-digit number dialed by a user of said mobile station;determining whether said call is indicated to be fraudulent;if said call is indicated to be fraudulent, determining whether said dialed number is a predefined multi-digit emergency number by performing a mini B-number analysis that sequentially compares one or more of the digits of said dialed number to the corresponding digits of said emergency number;if said call is indicated not to be fraudulent or if said dialed number is determined to be an emergency number, completing said call; andif said call is indicated to be fraudulent and if said dialed number is determined not to be an emergency number, invoking a predetermined fraud handling procedure selected by an operator of said system.