摘要： 从实现的角度分析了IP电话系统的结构，通过对语音处理，电话网关以及相关协议体系结构的分析，给出了在实际设计中需要解决的问题。

关键词: IP电话, 编码器, H.323标准, 网关

Abstract: This article analyzes Internet telephone architecture from the viewpoint for implementing. It introduces voice processing, phone gateway and related protocols, and gives some solutions about the applications and design.

中图分类号: 

• TN916