Voip Softswitch Technology-based Analysis And Research

VoIP means sampling, encoding, compressing the voice which convey the voice based on internet real-time online, it also include transfer multimedia information. Softswitch technology is established on VoIP which provide real-time, signaling controlling and interworking controlling. It separate the function of signaling controlling from media gateway and using the softwareon the server to realize the function such as the choosing call routes managingcontroK connecting control etc. So it is very easy to convey communicationoperation (include voice, video, data) to IP network. It integrate the traditional network and data communication network, simultaneously it can also accomplish many operation which traditional telecom can't finish.In this paper we first introduce the conception, theory, technology of compress and encoding, convey voice through the network informal, the solution of scheme based on various standards and protocols, expound the solution of scheme based on variable protocol. We propose the essential model which how to using the software exchange technology based on VoIP, then we discuss the core technology of the next generation network in detail. We have also analyze the function of media call Agent (MGC) and the media gateway control protocol(MGCP). Furthermore we expound how to realize transferring and controlling the signaling and media data.Finally, We propose a system model frame and give a voice system which based on MGCP protocol, we present the algorithms analysis and design, some important source pseudocode is provided as appendix.