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VoIP SIP and SKINNY quality analyzer and packet / audio recording tool
VoIPmonitor is open source network packet sniffer with commercial frontend for SIP SKINNY MGCP RTP and RTCP VoIP protocols running on linux. VoIPmonitor is designed to analyze quality of VoIP call based on network parameters - delay variation and packet loss according to ITU-T G.107 E-model which predicts quality on MOS scale. Calls with all relevant statistics are saved to MySQL or ODBC database. Optionally each call can be saved to pcap file with either only SIP / SKINNY protocol or...
justniffer is a TCP sniffer. It reassembles and reorders packets and displays the tcp flow in a customizable way. It can log network traffic in webserver log format. It can also log network services performances (e.g. webserver response times) and extract http content (images, html, scripts, etc)
Netgraph is a packet sniffer tool that captures all HTTP requests/responses, and displays them in a web page. You can run Netgraph in your Linux server without a desktop environment installed, and monitor HTTP requests/responses in your laptop's browser.