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Seeking opinions on VoIP monitoring and analysis


#1

I’m in need of something that can do SIP capture and analysis as well as RTP capture and analysis. HOMER is ok for the cost (free) but doesn’t do RTP and has a bunch of other quirks. VoIP Monitor (voipmonitor.org) seems to have it all and I’m planning a trial. What else do people use?


#2

pretty well sngrep with the -O option., sngrep can also capture.sdp RTFM


#3

Try again when sober? :slight_smile:


#4

Yea, I think homer isn’t a tool for RTP capture. I think the most it does with RTP is provide stats. When I’ve needed RTP capturing I’ve just used tcpdump with a file retention/rotation pattern. Load the files into Wireshark and analyze. Could also consider tshark or pcapsipdump.


#5

Thanks. I think dicko’s suggestion was similar but what I’m looking for is a continuous analysis tool, not a spot-check kind of tool. We regularly use pcaps and sngrep to analyze traffic for ad hoc troubleshooting.


#6

sngrep has options -H and -L for interaction with hep servers and clients, homer for the 10000 ft , sngrep to drill down.The -L is useful if your voip servers are not directly on your network. and you are watching more than one.