(19)

(11)

EP 1 723 754 A1

(12)

(43) Date of publication: 22.11.2006 Bulletin 2006/47 (21) Application number: 05709097.9 (22) Date of filing: 18.02.2005

(51) International Patent Classification (IPC):  H04L 12/58(2006.01) (86) International application number: PCT/IE2005/000016 (87) International publication number: WO 2005/081476 (01.09.2005 Gazette 2005/35)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR (30) Priority: 19.02.2004 EP 04394008 (71) Applicant: Openmind Networks Limited Dublin 2 (IE)	(72) Inventor: KELLY, Brian Bray, County, Wicklow (IE) (74) Representative: Curley, Donnacha John et al Hanna, Moore & Curley 13 Lower Lad Lane Dublin 2 Dublin 2 (IE)