According to the present situation of Qingdao netcom IP metropolitan area network using packet capture filtering technology, analyzed and designed a to bypass m broadband network monitoring system to monitor and analyze the business, the Internet's VolP calls on a line packets according to the characteristics of filtering, and analysis of signaling information reduction, streaming media data reconstruction and, according to the requirements of the operator, the analysis of the data statistics, this system can to gigabit or high-speed backbone lines VolP business were analyzed, and the implementation of traffic monitoring analysis, blocking the illegal traffic, industry L
Service flow statistics, trend analysis, and other functions, through the operators and trial data online, good results have been achieved, can meet the purpose of monitoring for VoIP calls,
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