(19)

(11)

EP 2 235 929 A2

(12)

(88) Date of publication A3: 12.11.2009 (43) Date of publication: 06.10.2010 Bulletin 2010/40 (21) Application number: 08868310.7 (22) Date of filing: 22.12.2008

(51) International Patent Classification (IPC):  H04M 15/00(2006.01) H04L 12/14(2006.01) (86) International application number: PCT/EP2008/068207 (87) International publication number: WO 2009/083548 (09.07.2009 Gazette 2009/28)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 27.12.2007 EP 07025142 (71) Applicant: Nokia Siemens Networks OY 02610 Espoo (FI)	(72) Inventor: KÜHNE, Ralph 71679 Asperg (DE)