(19)

(11)

EP 0 812 520 A1

(12)

(43) Date of publication: 17.12.1997 Bulletin 1997/51 (21) Application number: 96944620.0 (22) Date of filing: 20.12.1996

(51) International Patent Classification (IPC):  H04J 3/ 16( . ) H04Q 11/ 04( . ) (86) International application number: PCT/EP1996/005780 (87) International publication number: WO 1997/024903 (10.07.1997 Gazette 1997/30)

(84) Designated Contracting States: AT DK ES FI FR GB IT NL SE (30) Priority: 29.12.1995 DE 19951049126 (71) Applicant: TELEFONAKTIEBOLAGET LM ERICSSON 126 25 Stockholm (SE)	(72) Inventors: BLOMQUIST, Per S-165 71 Hässelby (SE) NYMAN, Johny S-129 42 Hägersten (SE) (74) Representative: von Fischern, Bernhard, Dipl.-Ing., et al  Hoffmann - Eitle, Patent- und Rechtsanwälte, Arabellastrasse 4 81925 München 81925 München (DE)