(19)
(11) EP 1 179 260 A1

(12)

(43) Date of publication:
13.02.2002 Bulletin 2002/07

(21) Application number: 00927481.2

(22) Date of filing: 28.04.2000
(51) International Patent Classification (IPC)7: H04M 15/00, G06F 1/00
(86) International application number:
PCT/GB0001/676
(87) International publication number:
WO 0067/460 (09.11.2000 Gazette 2000/45)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 04.05.1999 GB 9910268

(71) Applicant: Nortel Networks Limited
St. Laurent, Quebec H4S 2A9 (CA)

(72) Inventors:
  • BUTCHART, Katherine
    Stevenage,Hertfordshire SG2 9HX (GB)
  • DEMPSEY, Derek
    West Norwood,London SE27 0AJ (GB)

(74) Representative: Mercer, Christopher Paul et al
Carpmaels & Ransford 43, Bloomsbury Square
London WC1A 2RA
London WC1A 2RA (GB)

   


(54) METHOD AND SYSTEM FOR FRAUD DETECTION IN TELECOMMUNICATIONS