摘要
在计算机多媒体化和网络技术的推动下,VoIP电话作为一种因特网终端设备越来越受到企业的重视。首先对VoIP电话在企业及其办事处内部应用的网络拓扑和实现框图进行分析,进而针对企业的使用特点和要求设计了一种新型低成本的VoIP电话,该电话通过PC机的USB口通信和供电,具有廉价和方便使用的特点。在对该电话原理分析的基础上,给出了详细的硬件设计和软件的关键点设计。
With the development of multimedia and Internet VoIP, as a terminal equipment of Internet is getting,more and more attention.The realization and topology of VoIP in EIM （Enterprise Instant Messaging） network are analyzed,then a new and low cost VoIP phone based on the characteristics and requirements of enterprise is designed.The phone is very facility because it uses USB power supply and communicate.Based on analyzing the theory of the phone, the design of hardware and software are presented.
出处
《国外电子元器件》
2007年第2期4-6,10,共4页
International Electronic Elements
基金
广西科技三项(桂科工0630004-5N)
