My name is ***. I'm ** years old. I have grauduated from ** University since 2000. I majored in pattern learning and Artificial Intelligence and I got my master's degree in 2000. I joined ** company straight after my graduation. My job is software engineer. I have been working on developing video conference system for ** years. During ** years, I have attened 3 projects . The first one is Switch Center，which provides registration，authentication， call parsing， access control and public private network crossing. And Switch Center supports H323 protocol and SIP protocol. I'm in charge of SIP protocol and backup subsystem.The second is CloudMCU. MCU is the center of Multi Video Conference, which offers multi video mixing and audio mixing. CloudMCU is developped for Cloud Video Conference. I'm the owner of Call Subsystem of creating, modifying and terminating sessions. The third is Lync gateway which connects skype for business to Huawei conference system. I'm in charge of the feature of Lync FEC, which is a method of network adaptabilty