VoIP监听系统的方案和实现

随着科学技术的发展,人们对电话监听提出了越来越高的要求,特别是随着VoIP电话的推广,建立相应的监听系统迫在眉睫。文章指出了建立VoIP监听系统的意义和必要性,提出了3种VoIP监听系统的实现方案,比较这3种方案,指出各自优缺点。根据设计原则以及用会话边界控制器(SBC)实现的网络地址转换/防火墙(NAT/FW)穿越方式,选择了一种较佳方案。详细论述了设计原理和实现机制以及该系统的认证机制。

With the development of the communication technology,people are puttin g forward more and more demands for monitor of telephone. Especially with the sp read of VoIP, establishing corresponding monitor system has become an urgent nee d. This paper points out the significance and necessity of the system,and presen ts three solutions of realizing the system. Moreover,their advantages and disadv antages are discussed. According to the design principles, the best proposal is chosen by using the NAT/FW traverse method which is realized by session board co ntroller (SBC). At last, the design principles of the system and its realization and anthentication mechanism are discussed.