非常适合初学者了解SIP协议整体结构框架和功能的ppt资料-very suitable for beginners to understand SIP framework of the overall structure and function of information ppt 下载
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结构非常清晰的SIP协议栈，基于java语言，完全实现RFC3261- 下载
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SIP称为会话发起协议（Session Initiation Protocol)。SIP是Internet工程任务组（IETF）提出的建议中的一项协议，其目的是为了替代H.323的部分协议，主要是考虑到在下一代网络（NGN）中，由于IP产品和IP网关将在网络中得到大规模使用和集成，使得端到端都可以采用IP以实现纯IP的业务应用；而基于纯IP的SIP借鉴了HTTP和SMTP，结构简单并具有可扩充性和可扩展性。此外，SIP还提供良好的QoS支持。对于NGN在IP网络上实现VOIP和多媒体通信来讲，SIP在全面满足NGN特性要求的应用上具有独特的优势，必将成为下一代网络VOIP的重要解决方案。 -called SIP Session Initiation Protocol (Session Initiation Protocol l). SIP is the Internet Engineering Task Force (IETF), the recommendations of an agreement, its purpose is to replace the H.323 part of the agreement is mainly on account of the next generation network (NGN), As IP and IP gateways in the network will be large-scale use and integration, making end-to-end IP can be applied to achieve a pure IP business applications; For pure IP SIP from the HTTP and SMTP, simple structure and is designed to be scalable and scalability. In addition, the SIP also provides good QoS support. IP NGN for the realization of the VoIP network and multimedia communications speaking, SIP to meet the full requirements of the characteristics of NGN application has unique advantages, the next generation w 下载
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本文从 VoIP 技术的发展现状开始，分析了 VoIP 的发展方向，引入了软 交换和下一代网络的架构，讨论了软交换和下一代网络的功能、主要协议、 组网用途、和演进策略，介绍了软交换架构在下一代移动通讯网 UMTS 中的 应用。然后本文讨论了 H.323 协议的体系结构和它在软交换中应用的必要性 和可行性。之后，介绍了 SIP 网络与 H.323 网络地址解析体系的不同与互通 问题，研究分析了他们之间的互通寻址定位方案。 -paper from the VoIP technology development, the analysis of the VoIP development direction, introduction of the next generation soft switch and the network structure, discussed the next generation soft switch and network functions, the main agreement, Network use, and evolution strategy, introduced the soft structure of the exchange in the next generation UMTS mobile communications network applications. It then discussed the H.323 architecture and its application of soft switching the necessity and feasibility. , Introduced a SIP network with H.323 network address system of different analytical and communication problems Analysis of the exchange between them Addressable positioning program. 下载
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