(19)

(11)

EP 3 507 971 A1

(12)

(43) Date of publication: 10.07.2019 Bulletin 2019/28 (21) Application number: 17844665.4 (22) Date of filing: 31.03.2017

(51) International Patent Classification (IPC):  H04M 3/00(2006.01) H04M 7/00(2006.01) H04M 19/00(2006.01) H04L 12/00(2006.01) (86) International application number: PCT/AU2017/050278 (87) International publication number: WO 2018/039703 (08.03.2018 Gazette 2018/10)

(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 Designated Extension States: BA ME Designated Validation States: MA MD (30) Priority: 01.09.2016 AU 2016903500 (71) Applicant: NBN Co Limited North Sydney, New South Wales 2060 (AU)	(72) Inventors: WILKINS, Ryan North Sydney New South Wales 2060 (AU) STEIGER, Dennis North Sydney New South Wales 2060 (AU) ANDIS, James North Sydney New South Wales 2060 (AU) (74) Representative: Paterson, Colin et al Keltie LLP No.1 London Bridge London SE1 9BA London SE1 9BA (GB)