(19)

(11)

EP 1 579 396 A1

(12)

(43) Date of publication: 28.09.2005 Bulletin 2005/39 (21) Application number: 03781215.3 (22) Date of filing: 17.12.2003

(51) International Patent Classification (IPC)7: G07F 7/10, G07F 19/00, H04L 9/32 (86) International application number: PCT/SE2003/001980 (87) International publication number: WO 2004/057547 (08.07.2004 Gazette 2004/28)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR Designated Extension States: AL LT LV MK (30) Priority: 23.12.2002 SE 0203877 (71) Applicant: Telia AB (publ) 123 86 Farsta (SE)	(72) Inventors: ERIKSSON, Jonas S-652 22 Karlstad (SE) KAWE, Rolf S-654 68 Karlstad (SE) (74) Representative: Hopfgarten, Nils  Groth & Co.KB P.O. Box 6107 102 32 Stockholm 102 32 Stockholm (SE)