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(11)

EP 2 807 770 A1

(12)

(43) Date of publication: 03.12.2014 Bulletin 2014/49 (21) Application number: 12701876.0 (22) Date of filing: 26.01.2012

(51) International Patent Classification (IPC):  H04J 3/06(2006.01) H04M 11/06(2006.01) H04L 27/26(2006.01) H04L 5/00(2006.01) (86) International application number: PCT/EP2012/051202 (87) International publication number: WO 2013/110332 (01.08.2013 Gazette 2013/31)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (71) Applicant: Nokia Solutions and Networks Oy 02610 Espoo (FI)	(72) Inventors: KUIPERS, Martin 14624 Dallgow-Döberitz (DE) PIETILAINEN, Antti Olavi FI-02240 Espoo (FI)