(19)

(11)

EP 1 068 750 A1

(12)

(43) Date of publication: 17.01.2001 Bulletin 2001/03 (21) Application number: 99912986.9 (22) Date of filing: 31.03.1999

(51) International Patent Classification (IPC)7: H04Q 7/24, H04B 7/26 (86) International application number: PCT/AU9900/233 (87) International publication number: WO 9952/308 (14.10.1999 Gazette 1999/41)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (30) Priority: 03.04.1998 AU PP278998 (71) Applicant: TELSTRA CORPORATION LIMITED Melbourne, VIC 3000 (AU)	(72) Inventors: MARTIN, Andrew, Charles Kilsyth, VIC 3137 (AU) SYME, Cameron, Mark Myrtleford, VIC 3737 (AU) (74) Representative: Hackney, Nigel John et al Mewburn Ellis,York House,23 Kingsway London WC2B 6HP London WC2B 6HP (GB)