P2PSIP网络与PSTN的一种互通机制  

A MECHANISM FOR INTERCONNECTING P2PSIP NETWORK AND PSTN

作　　者：要志文[1] 吴恒奎[1] 高德云[1] 张宏科[1] 

机构地区：[1]北京交通大学电子信息工程学院下一代互联网互联设备国家工程实验室,北京100044

出　　处：《计算机应用与软件》2011年第6期36-38,62,共4页Computer Applications and Software

基　　金：国家重点基础研究发展规划(2007CB307106;2007CB307101);国家自然科学基金重点项目(60833002)

摘　　要：P2PSIP用P2P算法实现SIP的位置管理功能,解决了单点失效问题,有良好的可扩展性,将成为VoIP的关键技术。现有相关研究缺乏对不同网络互通的深入探讨。提出P2PSIP网络与PSTN的一种新颖的互通机制,并且基于该机制设计了一个易于实现的P2PSIP终端与PSTN电话互通的原型系统。互通的关键设计是一个具有双重身份的网关,在P2PSIP网络中作为对等端,在PSTN中负责连接电话机。经测试分析,该互通机制可以应用于实际网络,实现P2PSIP网络和PSTN之间的会话建立。P2PSIP implements the function of location management of SIP using P2P algorithm and has resolved the problem of single-point failure,it has good scalability and will become the key technology for future VoIP.Interconnection mechanisms between different networks should be studied in depth but current researches do not work a lot in this regard.In this paper,we propose a novel interconnection mechanism between P2PSIP network and PSTN.Furthermore,a prototype for facile achieving sessions between the P2PSIP host and the PSTN telephone is designed accordingly.The crucial design of the interconnection is a gateway with dual identities which plays an important role in P2PSIP network as a peer,and is in charge of PSTN telephone connection.Based on test analyses,our interconnection mechanism can be applied to actual networks for implementing the sessions between P2PSIP network and PSTN.

关 键 词：P2PSIP PSTN 互通机制 P2PSIP网关 

分 类 号：TP393.4[自动化与计算机技术—计算机应用技术]