(19)

(11)

EP 0 966 812 A1

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(43) Date of publication: 29.12.1999 Bulletin 1999/52 (21) Application number: 98909893.0 (22) Date of filing: 24.02.1998

(51) International Patent Classification (IPC):  G06F 13/ 00( . ) H04L 29/ 06( . ) H04M 3/ 00( . ) H04M 11/ 00( . ) H04L 9/ 32( . ) H04L 29/ 08( . ) H04M 3/ 42( . ) (86) International application number: PCT/SE1998/000330 (87) International publication number: WO 1998/040986 (17.09.1998 Gazette 1998/37)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 11.03.1997 SE 19970000871 (71) Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (publ) 126 25 Stockholm (SE)	(72) Inventor: SVEDBERG, Johan S-115 24 Stockholm (SE) (74) Representative: Forssell, Gunilla, et al  Albihns Patentbyra Stockholm AB, Box 5581 114 85 Stockholm 114 85 Stockholm (SE)