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(11)

EP 4 272 422 A1

(12)

(43) Date of publication: 08.11.2023 Bulletin 2023/45 (21) Application number: 22734842.2 (22) Date of filing: 04.01.2022

(51) International Patent Classification (IPC):  H04M 11/04(2006.01) G08C 17/02(2006.01) G08B 17/00(2006.01) H04B 7/14(2006.01) H04W 36/06(2009.01) (52) Cooperative Patent Classification (CPC): H04M 11/04; H04Q 9/00; H04W 4/90; H04W 36/32; H04W 12/63; G08B 25/14; G08B 7/066; G08B 25/009 (86) International application number: PCT/US2022/011167 (87) International publication number: WO 2022/147558 (07.07.2022 Gazette 2022/27)

(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: KH MA MD TN (30) Priority: 04.01.2021 US 202117141180 (71) Applicant: Nextivity, Inc. San Diego CA 92127-1889 (US)	(72) Inventor: LOTTER, Michiel Petrus San Diego, California 92127-1889 (US) (74) Representative: Slingsby Partners LLP  1 Kingsway London WC2B 6AN London WC2B 6AN (GB)