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LG Electronics, Inc.Sharp Corp.Huawei Technologies Co., Ltd.Ericsson, Inc.Nippon Telegraph & Telephone Corp.Kyocera Corp.Guangdong OPPO Mobile Telecommunications Corp., Ltd.Guangdong OPPO Mobile Telecommunications Corp., Ltd.Electronics & Telecommunications Research InstituteAlcatel-Lucent S ANTT DOCOMO, Inc.Showa Denko Materials Co. Ltd.Resonac Corp.Western Electric Co., Inc.Fujikura Ltd.Hitachi Metals, Ltd.Proterial Ltd.vivo Mobile Communication Co., Ltd.Nokia Siemens Networks OyLucent Technologies, Inc.BT Group PlcChina Mobile Communications Group Co., Ltd.China Mobile Communications Group Co., Ltd.Mannesmann AGJapan Aviation Electronics Industry Ltd.SK Telecom Co., Ltd.BlackBerry Ltd.Nubia Technology Co., Ltd.Nanjing University of Posts & TelecommunicationsKDDI Corp.
Nokia Siemens Networks OyMannesmann AGKoninklijke PTT Nederland NVNorthern Telecom Ltd.Cingular Wireless LLCMCI, Inc.MCI, Inc.America Online, Inc.America Online, Inc.KT Freetel Co., Ltd.Guangzhou Mingsen Technologies Co., Ltd.SOFTBANK BB Corp.Nextel Communications, Inc.Time Warner Entertainment Co. LPTime Warner Entertainment Co. LPGeneral Communication InstrumentsInsprit, Inc.Ameritech Corp.Ameritech Corp.Sunway Co., Ltd.Omnipoint Corp.Omnipoint Corp.Elisa Communications Corp.ke Kommunikations-Elektronik GmbHke Kommunikations-Elektronik GmbHWILLCOM, Inc.NEC Technologies (UK) Ltd.Telecom Italia Mobile SpAInstituto de TelecomunicaçõesUS West, Inc.
Nuance Communications, Inc.Genesys Cloud Services, Inc.TeleBrands Corp.Global Tel Link Corp.Talkdesk, Inc.TTEC Holdings, Inc.Alvaria, Inc.Phone.com, Inc.Prove Identity, Inc.Eliza Corp.iBasis, Inc.Broadband iTV, Inc.Teleperformance SAAlorica, Inc.American Tel-A-Systems, Inc.Coupons, Inc.BRIDGETEC Corp.Five9, Inc.VoltdeltaAPS, Inc.Triton Technologies, Inc.UJET, Inc.Wegener Communications, Inc.Additif SARLInvoca, Inc.Phonetica SpABeyond Verbal Communication Ltd.Neven Vision, Inc.Eyretel PlcTeloquent Communications Corp.
Deutsche Telekom AGDeutsche Telekom AGAvaya, Inc.LG Uplus Corp.Earth Technology Co. Ltd.Level 3 Communications LLCNeusoft Corp.Unify GmbH & Co. KGPlantronics, Inc.Genesys Cloud Services, Inc.Polycom, Inc.SMART Technologies ULCNokia of America Corp.RingCentral, Inc.Panasonic Corporation of North AmericaAfiniti Ltd.Ribbon Communications Operating Co., Inc.GENBAND US LLCKoss Corp.Enterasys Networks, Inc.8x8, Inc.silex technology, Inc.Zoom Video Communications, Inc.Vonage Business, Inc.Mavenir Systems, Inc.Reliance Jio Infocomm Ltd.ShoreTel, Inc.Synchronoss Technologies, Inc.LogMeIn, Inc.WhatsApp LLC