Test Tools
Network Analyzer or "Sniffer"
A Network Analyzer captures streams of packets from an Ethernet link, decodes each packet and displays the decodes and related statistics.
Vendors of network analyzers include Viavi, Finisar, Fluke, NETSCOUT and LiveAction. The Wireshark analyzer can be freely downloaded and supports a wide variety of protocol decodes.
VoIP Analyzer
A Voice over IP Analyzer is essentially a network analyzer with the added ability to decode VoIP signaling protocols and analyze RTP media streams.
Vendors of VoIP analyzers include Viavi, Artiza, Empirix, Finisar, NETSCOUT, Radcom, LiveAction
Voice Quality Tester
A Voice Quality Tester typically uses intrusive or active testing - sending audio files through a network and using tools such as P.862 to compare the impaired audio file with the original file.
Vendors of Voice Quality Testers include Agilent, EXFO, Empirix, Radcom, Sage
Audio Analyzer
An Audio Analyzer will display an audio file, allow you to listen to the audio and perform spectrum analysis.
Examples of Audio Analyzers include Audacity, Ocenaudio
Voice over IP Probe
A VoIP probe is located at some key point in the network, continuously monitors traffic and performs real time analysis of the media stream.
Vendors of VoIP probes include EXFO, Empirix, Radcom, VeEX
Download Telchemy's IP Network Simulator (Windows only)
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