VoIP电话终端穿越NAT技术的研究  

The Study of the Communication Between Two VoIP Telephone Behind NAT

作　　者：李延龙[1] 吕文红[2] 郭银景[2] 

机构地区：[1]北京理工大学机电学院 [2]青岛山东科技大学信息与电气工程学院

出　　处：《微计算机信息》2006年第09Z期254-256,105,共4页Control & Automation

基　　金：国家自然科学基金项目编号:60375037

摘　　要：VoIP技术在近几年发展非常迅速;在NAT后的电话终端怎样穿越NAT成为通信系统能否正常工作的关键。利用将网守和VoIP电话终端的H.323协议栈进行扩展是穿越NAT的技术关键,但同时也带来了网守负荷增加的问题。The VolP technology is developed rapidly in recent year. How to pierce the NAT has become the key-problem for telephone behind the NAT to work normally. The project to solve the NAT problem by expanding the H.323 protocol is economical and efficient. The study and realization of H.323 protocol expanding show that the difficult technology problem is solved successfully, but the gatekeeper become busier in the same time.

关 键 词：VOIP NAT 私网穿越 

分 类 号：TN915[电子电信—通信与信息系统]