(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)
7
:
H04M
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