摘要： 阐述了如何用软件实现IP电话网关及网守的通信，从网关与网守通信协议分析入手，用C++编写了编解码函数，并对该软件分阶段进行了检测。

关键词: IP电话, 网守, 网关, H.323

Abstract: This paper is about the communication between gateway and gatekeeper of IP phone. It starts from the present situation of the IP phone and the analysis of the communication protocols ,ends with the testing.

中图分类号: 

• TN915.05