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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 AmericaT-Mobile International AG & Co. KGAfiniti Ltd.Ribbon Communications Operating Co., Inc.GENBAND US LLCKoss Corp.Enterasys Networks, Inc.Vidyo, 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.
LG Electronics, Inc.Sharp Corp.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.China United Network Communications Ltd.
RingCentral, Inc.Gigaset Communications GmbHAlpha Networks, Inc.8x8, Inc.Twilio, Inc.TranSwitch Corp.Calix, Inc.Audiocodes, Inc.Grandstream Networks, Inc.Mobileum, Inc.BroadSoft, Inc.Ooma, Inc.Bandwidth, Inc.Net2Phone, Inc.Phoenix Technologies International LLCCalabrio, Inc.JAJAH, Inc.Nextiva, Inc.World Wide Packets, Inc.Nurivoice Co., Ltd.ViaCLIX, Inc.NextNet Wireless, Inc.PowerDsine Ltd.BridgePort Networks, Inc.IntelePeer, Inc.PurpleComm, Inc.Talari Networks, Inc.D2 Technologies, Inc.Harbour Networks Holdings Ltd.Eyeball Networks, Inc.
Nippon Telegraph & Telephone Corp.Motorola, Inc.Nokia Siemens Networks OyBT Group PlcKDDI Corp.Deutsche Telekom AGChina Telecom Corp. Ltd.Alcatel-Lucent Shanghai Bell Co., Ltd.Nokia Shanghai Bell Co. Ltd.Snap, Inc.iconectiv LLCMTG Co., Ltd.Dropbox, Inc.WONIK IPS CO., LTD.Sunplus Technology Co., Ltd.MCI, Inc.MCI, Inc.TeleCommunication Systems, Inc.Allied Telesis Holdings K.K.Synamedia Ltd.Advanced International Multitech Co. Ltd.Metaswitch Networks Ltd.Opzoon Technology Co., Ltd.Shenzhen ZNV Technology Co. Ltd.Ribbon Communications Operating Co., Inc.Channell Commercial Corp.GemTek Technology Co., Ltd.GENBAND US LLCAlpha Networks, Inc.Shanghai Mobile Communications Co. Ltd.
Nippon Telegraph & Telephone Corp.BT Group PlcChina Mobile Communications Group Co., Ltd.China Mobile Communications Group Co., Ltd.KDDI Corp.China United Network Communications Ltd.Deutsche Telekom AGChina Telecom Corp. Ltd.Broadcom Corp.China Mobile Communication Co., Ltd.Comcast Cable Communications LLCSnap, Inc.Cirrus Logic, Inc.SoftBank Corp.Telefónica SAiconectiv LLCSagemcom Broadband SASMTG Co., Ltd.Sagemcom Broadband SASShenzhen Coship Electronics Co., Ltd.Sennheiser V & V GmbH & Co. KGAIXTRON SEWONIK IPS CO., LTD.Plantronics, Inc.Fujian Star-Net Communication Co., Ltd.Anker Innovations Technology Co., Ltd.Post Office Ltd.Sunplus Technology Co., Ltd.Shenzhen Sunway Communication Co., Ltd.Anker Innovations Technology Co., Ltd.
EXFO, Inc.Tollgrade Communications, Inc.Aprisma Management Technologies, Inc.Moogsoft (Herd), Inc.Guavus, Inc.ScienceLogic, Inc.Hekimian Laboratories, Inc.Sheer Networks, Inc.Tutela Technologies Ltd.Velocent Systems, Inc.Objective Systems Integrators, Inc.uPRESTO, Inc.Avvasi, Inc.RADCOM Ltd.
Avaya, Inc.Unify GmbH & Co. KGPlantronics, Inc.Ribbon Communications Operating Co., Inc.Forest Investments, Inc.Mavenir Systems, Inc.ShoreTel, Inc.Nable Communications, Inc.BroadSoft, Inc.Myriad Group AGMasergy Communications, Inc.Fuze, Inc.cycos AGIntrado Corp.Ceno Technologies Ltd.Applied Voice & Speech Technologies, Inc.Interop Technologies LLCInfinite Convergence Solutions, Inc.Dialpad, Inc.Callware Technologies, Inc.New Era Technology, Inc.Slovak Telekom AS
