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基于 Internet 思想的 SIP 架构和协议为传统的网络业务体系结构增加了会话的空间,为下一代的支持开放的虚拟集群通信的多媒体的网络传输业务和共享业务打下了重要的基础。表面上会话的结构类似于传统业务中的呼叫处理,但是两者本质上是完全不同的。SIP 会话是与业务无关的,它的引入打破了传统面向业务体系中用户、业务和应用之间的直接耦合,这是实现下一代业务开放体系结构的关键。对业务无关会话结构的深刻理解,将为采用 IP 技术发展和创新网络业务打下坚实的基础。
The SIP-based architecture and protocols based on Internet have increased the conversation space for the traditional network service architecture and laid an important foundation for the next generation of multimedia network transmission services and shared services that support the open virtual cluster communication. The structure of a seemingly similar session is similar to the call processing in traditional services, but the two are fundamentally different in nature. SIP conversation is business-independent, and its introduction breaks the direct coupling between users, services and applications in the traditional business-oriented system. This is the key to realizing the open architecture of next generation business. A deep understanding of the business-neutral session structure will lay a solid foundation for the development and innovation of network services using IP technologies.