软交换是下一代网络的核心,其发展道路可分为两派:一派是由“软”而“交换”,另一派是由“交换”而“软”。但归根结蒂,最终实现的是一个以 IP 为基础的提供多元服务的网络。软交换是什么软交换建立在 VoIP 基础之上,然后把更多的电信业务用 IP 的方式来实现。单纯的 VoIP 很容易,但是把传统的业务都放在 IP 网上就要比 IP 电话复杂很多,于是业界开始考虑怎样把传统电信业务过渡到以 IP 为基础的网络上。软交换是把不同的通讯业务,包括话音、 Softswitch is the core of NGN. Its development path can be divided into two groups: one is “soft” and the other is “exchange”; the other is “exchange” and “soft”. But in the end, the ultimate realization of the IP-based multi-service network. Softswitch is what softswitch built on the basis of VoIP, and then more telecommunications services using IP way to achieve. Simple VoIP is easy, but traditional services are far more complicated than IP phones over IP networks, and the industry is starting to think about how to move from traditional telecom to IP-based networks. Softswitch is the different communications services, including voice,