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LG Electronics, Inc.Sharp Corp.Nippon Telegraph & Telephone Corp.Guangdong OPPO Mobile Telecommunications Corp., Ltd.Kyocera Corp.Guangdong OPPO Mobile Telecommunications Corp., Ltd.Oki Electric Industry Co., Ltd.Electronics & Telecommunications Research InstituteMotorola, Inc.NTT DOCOMO, Inc.Alcatel-Lucent S AShowa Denko Materials Co. Ltd.Western Electric Co., Inc.vivo Mobile Communication Co., Ltd.Resonac Corp.Fujikura Ltd.Hitachi Metals, Ltd.Nokia Siemens Networks OyChina Mobile Communications Group Co., Ltd.Lucent Technologies, Inc.China Mobile Communications Group Co., Ltd.Mannesmann AGJapan Aviation Electronics Industry Ltd.SK Telecom Co., Ltd.BlackBerry Ltd.Orange SAChina United Network Communications Group Co., Ltd.Huawei Device Co., Ltd.China Telecom Corp. Ltd.Nubia Technology Co., Ltd.
Deutsche Telekom AGAvaya, Inc.LG Uplus Corp.Mitel Networks Corp.Level 3 Communications LLCPlantronics, Inc.Genesys Cloud Services, Inc.Unify GmbH & Co. KGTelia Finland OyjNokia of America Corp.SMART Technologies ULCPanasonic Corporation of North AmericaT-Mobile International AG & Co. KGAfiniti Ltd.Koss Corp.Enterasys Networks, Inc.Vidyo, Inc.8x8, Inc.silex technology, Inc.Twilio, Inc.Zoom Video Communications, Inc.Vonage Business, Inc.Mavenir Systems, Inc.Reliance Jio Infocomm Ltd.ShoreTel, Inc.Synchronoss Technologies, Inc.damaka, Inc.WhatsApp LLCInteractive Intelligence Group, Inc.NEC Technologies (UK) Ltd.
Nippon Telegraph & Telephone Corp.Motorola, Inc.Nokia Siemens Networks OyChina Telecom Corp. Ltd.KDDI Corp.Deutsche Telekom AGAnritsu Corp.Alcatel-Lucent Shanghai Bell Co., Ltd.Nokia Shanghai Bell Co. Ltd.iconectiv LLCMTG Co., Ltd.MCI, Inc.MCI, Inc.Gateway, Inc.TeleCommunication Systems, Inc.Synamedia Ltd.Sunwave Communications Co., Ltd.Advanced International Multitech Co. Ltd.Opzoon Technology Co., Ltd.Shenzhen ZNV Technology Co. Ltd.Channell Commercial Corp.GemTek Technology Co., Ltd.Alpha Networks, Inc.Shanghai Mobile Communications Co. Ltd.Twilio, Inc.TranSwitch Corp.Nextel Communications, Inc.MoSys, Inc.Telecomunicações Brasileiras SAComptel Oyj
Nippon Telegraph & Telephone Corp.China Mobile Communications Group Co., Ltd.China Mobile Communications Group Co., Ltd.China Telecom Corp. Ltd.KDDI Corp.China United Network Communications Ltd.Realtek Semiconductor Corp.Deutsche Telekom AGBroadcom Corp.China Mobile Communication Co., Ltd.Comcast Cable Communications LLCCirrus Logic, Inc.Iwatsu Electric Co., Ltd.SoftBank Corp.Saitama Murata Manufacturing Co., Ltd.Mitel Networks Corp.Telefónica SAiconectiv LLCSagemcom Broadband SASMTG Co., Ltd.Sagemcom Broadband SASShenzhen Coship Electronics Co., Ltd.Plantronics, Inc.Anker Innovations Technology Co., Ltd.AIXTRON SESennheiser V & V GmbH & Co. KGPost Office Ltd.Telia Co. ABOnePlus Technology (Shenzhen) Co., Ltd.Telekom Deutschland GmbH
Avaya, Inc.Plantronics, Inc.Unify GmbH & Co. KG8x8, Inc.Forest Investments, Inc.ShoreTel, Inc.Nable Communications, Inc.BroadSoft, Inc.Multitone Electronics PlcMyriad Group AGAcme Packet, Inc.Masergy Communications, Inc.Fuze, Inc.cycos AGCeno Technologies Ltd.Dialpad, Inc.Applied Voice & Speech Technologies, Inc.West Technology Group LLCInterop Technologies LLCInfinite Convergence Solutions, Inc.Callware Technologies, Inc.New Era Technology, Inc.Slovak Telekom ASWhaleback Systems Corp.Eicon Networks Corp.Mitel Communications AB