(19)
(11) EP 1 103 136 A2

(12)

(88) Date of publication A3:
15.03.2001

(43) Date of publication:
30.05.2001 Bulletin 2001/22

(21) Application number: 98945179.4

(22) Date of filing: 07.08.1998
(51) International Patent Classification (IPC)7: H04M 3/50
(86) International application number:
PCT/EP9805/027
(87) International publication number:
WO 9908/432 (18.02.1999 Gazette 1999/07)
(84) Designated Contracting States:
CH DK ES FI FR GB IE IT LI NL SE

(30) Priority: 08.08.1997 DE 19734436

(71) Applicant: Telefonaktiebolaget L M Ericsson (Publ)
126 25 Stockholm (SE)

(72) Inventors:
  • BERN, Mats
    141 32 Huddinge (SE)
  • BERN, Sara
    141 32 Huddinge (SE)

(74) Representative: HOFFMANN - EITLE 
Patent- und RechtsanwälteArabellastrasse 4
81925 München
81925 München (DE)

   


(54) A METHOD AND AN APPARATUS FOR EXCHANGING INFORMATION BETWEEN SUBSCRIBER STATIONS OF A TELEPHONE COMMUNICATION NETWORK