EP 0988765 A1 20000329 - SYSTEM AND METHOD FOR DETECTING UNAUTHORIZED USE OF A CELLULAR TELEPHONE
Title (en)
SYSTEM AND METHOD FOR DETECTING UNAUTHORIZED USE OF A CELLULAR TELEPHONE
Title (de)
SYSTEM UND VERFAHREN ZUR ERKENNUNG UNERLAUBTER NUTZUNG EINES ZELLULAREN TELEFONS
Title (fr)
SYSTEME ET PROCEDE DE DETECTION DES UTILISATIONS NON AUTORISEES DES TELEPHONES CELLULAIRES
Publication
Application
Priority
- CA 9800572 W 19980610
- US 87287997 A 19970611
Abstract (en)
[origin: WO9857514A1] A system and method for detecting and preventing cellular fraud in a cellular network. The network includes a database such as a home location register that stores a listing of potential terminating numbers that the authorized user is allowed to call. Therefore, whenever a call is initiated by a cellular telephone using the identification number of the authorized user, the called number is compared to the listing. If the called number is in the listing, the call completes normally. If not, an additional level of security can be provided. For example, the caller may be prompted for a security code, the caller may be transferred to a service center, or the caller may be transferred to a cellular-fraud-prevention task force. If, in the first example, the caller supplies the correct security code, then it is assumed that he is the authorized user and the call completes normally. Furthermore, the called number may then be added to the listing. Otherwise, it is assumed that the caller is a fraudulent user and is handled accordingly.
IPC 1-7
IPC 8 full level
H04Q 7/38 (2006.01); H04W 12/06 (2009.01)
CPC (source: EP US)
H04W 12/126 (2021.01 - EP); H04W 12/30 (2021.01 - EP US); H04W 12/06 (2013.01 - EP); H04W 12/63 (2021.01 - EP US)
Citation (search report)
See references of WO 9857514A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 9857514 A1 19981217; AU 8005698 A 19981230; CA 2293450 A1 19981217; EP 0988765 A1 20000329
DOCDB simple family (application)
CA 9800572 W 19980610; AU 8005698 A 19980610; CA 2293450 A 19980610; EP 98928032 A 19980610