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LG Electronics, Inc.Sharp Corp.Huawei Technologies Co., Ltd.Ericsson, Inc.Nippon Telegraph & Telephone Corp.ZTE Corp.Kyocera Corp.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.telent Ltd.Mannesmann AGJapan Aviation Electronics Industry Ltd.SK Telecom Co., Ltd.BlackBerry Ltd.Tokyo Electric Power Co. Holdings, Inc.Nubia Technology Co., Ltd.
RingCentral, Inc.Gigaset Communications GmbHAlpha Networks, Inc.8x8, Inc.silex technology, Inc.Twilio, Inc.TranSwitch Corp.Calix, Inc.Audiocodes, Inc.Mobileum, Inc.Grandstream Networks, Inc.Ooma, Inc.Bandwidth, Inc.Calabrio, Inc.Phoenix Technologies International LLCJAJAH, 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.Cellcrypt 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.Futurewei Technologies, Inc.Comcast Cable Communications LLCSnap, Inc.Cirrus Logic, Inc.Iwatsu Electric Co., Ltd.SoftBank Corp.Sagemcom Broadband SASMTG Co., Ltd.Sagemcom Broadband SASShenzhen Coship Electronics Co., Ltd.Sennheiser V & V GmbH & Co. KGAIXTRON SEWONIK IPS CO., LTD.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.Shenzhen Sunway Communication Co., Ltd.
8x8, Inc.Twilio, Inc.BroadSoft, Inc.Bandwidth, Inc.Nextiva, Inc.IntelePeer, Inc.Intrado Corp.
Ericsson, Inc.Intel Corp.Nippon Telegraph & Telephone Corp.Guangdong OPPO Mobile Telecommunications Corp., Ltd.Guangdong OPPO Mobile Telecommunications Corp., Ltd.NTT DOCOMO, Inc.vivo Mobile Communication Co., Ltd.Nokia Siemens Networks OyMediaTek, Inc.BT Group PlcChina Mobile Communications Group Co., Ltd.China Mobile Communications Group Co., Ltd.SZ DJI Technology Co., Ltd.telent Ltd.Mannesmann AGSK Telecom Co., Ltd.BlackBerry Ltd.Xiaomi Corp.Motorola Solutions, Inc.Nubia Technology Co., Ltd.KDDI Corp.China United Network Communications Ltd.Beijing University of Posts & TelecommunicationsMotorola Solutions Credit Co. LLCGuangzhou Shiyuan Electronic Technology Co. Ltd.Guangzhou Shiyuan Electronic Technology Co. Ltd.Deutsche Telekom AGHangzhou H3C Technologies Co., Ltd.China Telecom Corp. Ltd.Xilinx, Inc.
Yagi Antenna Co., Ltd.Multitone Electronics PlcHello Direct, Inc.Bandwidth, Inc.Nextiva, Inc.Donica Aviation Engineering Co., Ltd.Samsin Innotec Co. Ltd.Larimart SpAIntelePeer, Inc.Telsey SpARaven Antenna Systems, Inc.Integrated Data Corp.Appeal Telecom Co., Ltd.EnvoyWorldWide, Inc.Tri-electronics, Inc.Mier Comunicaciones SATelson Information & Communication Co. Ltd.Hikari Tsushin, Inc.Sirio Antenne SrlSoftBank Group Corp.Connect Things, Inc.Elap SASAmerican Messaging Services LLCEMC Electronic Media Communication SASwissphone Wireless AGLocate Networks, Inc.