VoIP技术原理及实现

The VoIP Technology Theory and Applications

IP电话是一种数字电话,是技术创新的一种通信服务业务。它把语音压缩编码、打包分组、分配路由、存储交换、解包解压等交换处理在IP网或互联网上实现语音通信。这里对IP电话机采集、播放语音信号,运行H.323协议系列,用RTP传输数字化的语音信息流的过程做了详细描述。同时还介绍VoIP系统设计实例,并详细分析了设备配置和系统操作过程。

The development directions of the VolP technology is following the ITU H. 323 standards. The article has a general description of the VolP principle, including basic transport procedure, critical technology and H. 323 standards and some kind of forms of VolP system. Based on the introductioo above, introduces the VolP system example.