(19)

(11)

EP 1 198 924 A1

(12)

(43) Date of publication: 24.04.2002 Bulletin 2002/17 (21) Application number: 99938432.4 (22) Date of filing: 02.08.1999

(51) International Patent Classification (IPC)7: H04L 12/18, H04L 12/58 (86) International application number: PCT/GB9902/542 (87) International publication number: WO 0110/081 (08.02.2001 Gazette 2001/06)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (71) Applicant: Telewest Communications Plc. Woking,Surrey GU21 5RW (GB)	(72) Inventor: TARRUELLA, Marcos E-25001 Lleida (ES) (74) Representative: Potter, Julian Mark  D. Young & Co.,21 New Fetter Lane London EC4A 1DA London EC4A 1DA (GB)