(19)

(11)

EP 1 254 557 A1

(12)

(43) Date of publication: 06.11.2002 Bulletin 2002/45 (21) Application number: 01904166.4 (22) Date of filing: 12.02.2001

(51) International Patent Classification (IPC)7: H04M 11/04 (86) International application number: PCT/GB0100/573 (87) International publication number: WO 0106/0037 (16.08.2001 Gazette 2001/33)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 10.02.2000 GB 0002927 (71) Applicant: Bluechip Technologies Limited Belfast BT3 9LF (GB)	(72) Inventors: DONNELLY, Paul Saint FieldNorthern Ireland BT8 6WL (GB) WHITFIELD, Stephen HolywoodNorthern Ireland BT18 9LN (GB) (74) Representative: Cooper, John et al Murgitroyd & Company165-169 Scotland Street Glasgow G5 8PL Glasgow G5 8PL (GB)