(19)
(11) EP 1 417 827 A1

(12)

(43) Date of publication:
12.05.2004 Bulletin 2004/20

(21) Application number: 02759162.7

(22) Date of filing: 19.07.2002
(51) International Patent Classification (IPC)7H04M 15/00, H04M 17/00
(86) International application number:
PCT/US2002/022984
(87) International publication number:
WO 2003/009575 (30.01.2003 Gazette 2003/05)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 19.07.2001 US 908831

(71) Applicant: Worldcom, Inc.
Clinton, MS 39056 (US)

(72) Inventors:
  • MARCHAND, Dean, C.
    Longmont, CO 80501 (US)
  • SPRINGER, Arthur, Lance
    Waterloo, IA 50707 (US)

(74) Representative: Hofmann, Harald 
Sonnenberg Fortmann,Patent- & Rechtsanwälte,Postfach 33 08 65
80068 München
80068 München (DE)

   


(54) METHOD AND SYSTEM FOR PREVENTING FRAUD IN A TELECOMMUNICATIONS SYSTEM