Research And Realization Of Telephone Conference Technology Based On Packet Forwarding

Under the popularization tendency of the application of telephone conference system and in order to solve the problems existed in present telephone conference, a new implementation method of telephone conference named telephone conference technology based on packet forwarding is proposed and designed in the paper. A telephone conference basic platform is built in the direction of Softswitch based on PSTN Signal technology and Ethernet technology.The development course and implementation methods of telephone conference technology are analyzed. Then the development tendency of telephone conference technology is discussed. In order to solve the insufficient such as high cost or compatibility of present telephone conference implementation methods, the method of telephone conference technology based on packet forwarding is proposed.Subsequently, interrelated technologies include the design thought of Softswitch technology, the packet forwarding function of fast transfer technology, the catching data function at the bottom of WinPcap technology and the communication idea of SS7.After synthesizing the former technologies and based on those technologies, some mainly difficult puzzles are studied in the paper. On the one hand, to realize the talk between multiple sides which is the basic function of telephone conference, the DirectSound technology is applied to solve the sound mixing of multiple channels. On the other hand, in order to quicken the speed of data processing, the Fast Transfer Box is used to link the subscriber of PSTN and the client of Ethernet. So, a special communication protocol is designed to well cooperate each part according to the communication theory and design flow of Fast Transfer Box. Then the telephone conference client system and telephone conference server system are designed according to the demand of subscriber. The telephone...