(19)

(11)

EP 0 976 257 A1

(12)

(43) Date of publication: 02.02.2000 Bulletin 2000/05 (21) Application number: 97934837.2 (22) Date of filing: 01.08.1997

(51) International Patent Classification (IPC)7: H04Q 3/62, H04M 7/00 (86) International application number: PCT/SE9701/319 (87) International publication number: WO 9806/224 (12.02.1998 Gazette 1998/06)

(84) Designated Contracting States: AT DE DK ES FI FR GB IT NL SE (30) Priority: 06.08.1996 SE 9602932 (71) Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (publ) 126 25 Stockholm (SE)	(72) Inventors: BERGGREN, Tomas S-135 49 Tyreso (SE) NYMAN, Johny S-129 42 Hägersten (SE) (74) Representative: Wideberg, Olle Sven et al Ericsson Telecom AB,IPR Management and Patent Department 126 25 Stockholm 126 25 Stockholm (SE)