(19)

(11)

EP 1 016 015 A2

(12)

(88) Date of publication A3: 06.05.1999 (43) Date of publication: 05.07.2000 Bulletin 2000/27 (21) Application number: 98944394.0 (22) Date of filing: 14.09.1998

(51) International Patent Classification (IPC)7: G06F 17/60, G06F 17/30 (86) International application number: PCT/SE9801/629 (87) International publication number: WO 9914/697 (25.03.1999 Gazette 1999/12)

(84) Designated Contracting States: CH DE DK ES FI FR GB IT LI NL SE Designated Extension States: LT LV (30) Priority: 17.09.1997 SE 9703349 (71) Applicant: Telia AB (publ) 123 86 Farsta (SE)	(72) Inventors: ISAKSSON, Lennart S-954 35 Lule (SE) CHRISTENSEN, Maria S-961 95 Boden (SE)