Based On The SIP-T Softswitch Call Processing Software Design And Implementation

Softswitch is the core technology in next genration network. Now the standard and research&development of Softswitch are underway.This paper first introduce the structure of next generation network and Softswitch technology include its interface protocols, then brief expatiate the developmental statusand and trends of Softswitch.There are serveral protocols in Softswitch system. This paper compare includes their architectures, their influenceson Softswitch, Networking structures and how they affect Softswitch on service providing. As a conclusion their applicable scopes are put forward and an important reference choice for the Softswitch interworking protocol in China is given.At last, this paper implements one way to realize communication and call trunk between Softswitch entitys base on standard SIP-T protocol. On the Base of entity communication, call trunk requirement and trends, use leading computer and software technology, this paper bring forward a design idea which have high availability and can suit for telecommunication requirement. Paper also explains its requirements, system architecture and some important fuction and key technical points.