(19)

(11)

EP 0 864 211 A1

(12)

(43) Date of publication: 16.09.1998 Bulletin 1998/38 (21) Application number: 97919192.0 (22) Date of filing: 29.04.1997

(51) International Patent Classification (IPC):  G07F 17/ 16( . ) H04L 12/ 18( . ) H04M 3/ 487( . ) H04W 4/ 14( . ) H04M 3/ 53( . ) H04W 4/ 02( . ) H04H 20/ 28( . ) H04L 29/ 08( . ) H04M 3/ 493( . ) H04M 3/ 42( . ) H04M 7/ 12( . ) H04W 8/ 18( . ) (86) International application number: PCT/AU1997/000260 (87) International publication number: WO 1997/041654 (06.11.1997 Gazette 1997/47)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 29.04.1996 AU 1996PN09550 (71) Applicant: TELEFONAKTIEBOLAGET LM ERICSSON 126 25 Stockholm (SE)	(72) Inventors: TSOUKAS, George, James North Fitzroy, VIC 3068 (AU) McLORINAN, Andrew, George Hampton, VIC 3188 (AU) (74) Representative: O'Connell, David Christopher, et al  Haseltine Lake & Co., Imperial House, 15-19 Kingsway London WC2B 6UD London WC2B 6UD (GB)