铁路企业基于PTN网络的IP电话系统研究与实现  

Research and Implementation of IP Phone System over the Railway Corporation Network Base on PTN

作　　者：王文华[1] 

机构地区：[1]中国铁道科学研究院国家铁道试验中心,北京100015

出　　处：《信息通信》2017年第10期207-209,共3页Information & Communications

摘　　要：铁路企业利用PTN在不同地域间建立了企业专网,企业专网可同时为多种应用系统提供通道。文章在简述IP电话的基本原理、结构及关键技术的基础上,研究在铁路企业已建立的企业专网上配置IP PBX交换机等设备,构建适合铁路企业的IP电话系统。通过研究提出IP电话系统方案,并以实例验证该系统方案的可行性,表明IP电话系统比传统电话更具经济效益。Railway Corporation build the Private Network base on the technology o f PTN, Which can provide channels for vari-ous application systems.Based on brief of thebasic principles, structure and key technologies of IP Phone system, this article di-scussed asuitable IP Phone systemsolution for anenterprise group via configuring the IP PBX and others related equipment over thecorporation Private Network. This paper proposes anIP phone system solution which can be constructed,and anexample is given to verify the feasibility o f the system, which shows that the IP phone system is more economic than the traditionalphone system.

关 键 词：企业专网 IP电话 信令 语音 系统构成 

分 类 号：TN916.1[电子电信—通信与信息系统]