Soft-switch technology
Zhang Mao-yao · 2004
The traditional telephone switch net has some characteristics of privacy, closeness, and high costs of development, but it can not provide new competitive business on time. On the other hand, the market has raised some requirements that not only have comprehensive business but also has aimed at specific group of people, even individuals. All kinds of technological characteristics are tending to be consistent, and revolve towards wide-band and intelligence. It is inevitable that the next generation of net will appear soon. The Softswitch is a functional entity of control level of next generation call, which is developed from IP telephone. Its call is separated from bearing and its business is separated from call control. Also, it gives consideration to the communication with the present net business, the development of the net for next generation, and it provides open and standard API or protocol. Its distributed structure and capability of net connection make the telecommunication possible. The appearance of Softswitch technology enable the telecommunication companies to provide micro-services for different groups of people rapidly. And its prospect is vast. However, there are some commercial and technological problems, such as lack of unified standard, compatible problem of protocol, no mature products of API, uncertainty of business, etc.