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.