摘要
IP电话语音网关设备主要采用H.323协议和MGCP实现,但是H.323协议和MGCP实现过程复杂,给实际使用造成很多的问题。提出一种采用CM5000的FXS终端的实现方法,Vo IP协议采用实现简单的SIP协议,同时也能够确保电话业务的服务质量,设备的MOS值为4.5,电话业务接口的技术性能指标满足相关规范要求;重点阐述了基于CM5000的FXS终端的硬件与软件的设计方法;电话接口的性能测试结果表明,所提出的方案在因特网运行良好。
We developed IP telephone voice gateway devices on H. 323 protocol and MGCP Protocol,then there are very complicated to do for us,which resulted in a lot of problem. In order to improve design of IP telephone,a portable design of FXS terminal devices is put forward on CM5000,which may be implemented by using simple SIP protocols,not only ensure Qo S of telephone operation,but also MOS value of 4. 5,so telephone operation interface accorded with correlative criterion; How to design and implement the hardware and software of FXS terminal device on CM5000 was described; Performance testing result of telephone interface indicated the design doing all right on Internet.
出处
《电子器件》
CAS
北大核心
2015年第4期903-907,共5页
Chinese Journal of Electron Devices
基金
重庆市科委项目(cstc2013yykfc4003)
关键词
IP电话
语音网关
SIP
FXS
FXO
IP Telephone
voice gateway.TIF
Session Initiation Protocol
Foreign Exchange Station
Foreign Exchange Office
