Study And Implementation Of NGN Key Technologies

In modern society, information means the chance. The fast development of society needs the modes of communication to be faster, more and more precise. Today, although there are many convenient communication modes, but none of them can satisfy these demands. The basic reasons that enforce the evolution of the telecommunication network are the demands of variety for service, the reduction of the management and the facility of the system. Now, NGN is an important thesis in the industry for its market prospects and the alluring multimedia applications. So more and more efforts are made in this field for its key technologies' research and market.Softswitch and IP are two important technologies that support the NGN. Meanwhile the emergence of VOIP and its success provide us good consultation for NGN achievement. IETF brings up the SIP protocol whose design idea is making good use of the IP's simplification and its ease for expanding more application to establish the IP's core role in NGN.