VoWLAN监听系统的设计与实现

Design and Implementation of VoWLAN Monitor System

将WLAN与VoIP两项技术结合起来的VoWLAN业务目前发展迅速,随之而来的VoWLAN监听问题也为人们所重视。现有的VoWLAN监听装置大都架设不便,容易被目标发现且精准度不高。论文提出了一种VoWLAN监听系统的实现方法,使用方便灵活,可对无线局域网内的语音通话进行安全有效的监听。本系统采用分布式架构,系统按功能分开物理模块,重点介绍了语音还原技术,并对系统的实现进行了详细说明。测试表明,该系统能够有效地实现VoWLAN监听。

Nowadays, the Technologies of WLAN and VoIP develop rapidly, and VoWLAN as the combination of these two has become popular. At the same time, the monitor of VoWLAN has also become an important problem. There are a lot of problems within the existing monitor systems, such as hard to erect, low in precision, and easy to be detected by the target. In this article, a novel implementation of VoWLAN monitor system is proposed, which is convenient to use and can monitor VoWLAN effectively. The system adopts distributed construction, and separates physical modules according to their different functions. This paper focuses on voice recovery algorithm, and describes in detail the environment of system implementation and flow. Test shows that the system can monitor VoWLAN effectively.