一种基于SIP接入的话音专线的设计与实现

Design and Implementation of A Private Voice Line Based on SIP Access in Private Network Communication

随着会话初始化协议(Session Initial Protocol,SIP)的发展和推广,一些专有网络也部署了基于SIP协议的网络通信服务器和话音终端,但这些基于SIP协议的话音终端不能与专网中基于异步传输模式(Asynchronous Transfer Mode,ATM)交换体制的话音设备建立话音专线。为满足这种使用需求,针对专网中现有的网络通信服务器进行分析研究后对设备功能做了改进。改进后使用各类SIP话音终端与专网中基于ATM的话音终端进行专线测试,功能良好,完全满足用户的使用需求。

With the development and promotion of Session Initial Protocol(SIP)protocol,network communication servers and voice terminals based on SIP protocol are also deployed in proprietary networks,but these voice terminals based on SIP protocol cannot establish private voice lines with voice equipment based on Asynchronous Transfer Mode(ATM)switching system in proprietary networks.To meet this demand,the function of the equipment is improved after analyzing and studying the existing network communication server in the proprietary network.After the equipment improvement,all kinds of SIP voice terminals are used to test the private line with the voice terminals based in the proprietary network.The function is good and fully meets the needs of users.