07 May 2008 | 8,873 views

rtpbreak 1.3a Released – RTP Analysis and Hacking

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rtpbreak 1.3a has been released, we initially brought you news of this tool back in August 2007 with the first announcement of rtpbreak.
With rtpbreak you can detect, reconstruct and analyze any RTP session. It doesn’t require the presence of RTCP packets and works independently form the used signaling protocol (SIP, H.323, SCCP etc). The input is a sequence of packets, the output is a set of files you can use as input for other tools (wireshark/tshark, sox, grep/awk/cut/cat/sed and so on). It also supports wireless (AP_DLT_IEEE802_11) networks.

This is a list of scenarios where rtpbreak is a good choice:

  • reconstruct any RTP stream with an unknown or unsupported signaling protocol
  • reconstruct any RTP stream in wireless networks, while doing channel hopping (VoIP activity detector)
  • reconstruct and decode any RTP stream in batch mode (with sox, asterisk)
  • reconstruct any already existing RTP stream
  • reorder the packets of any RTP stream for later analysis (with tshark, wireshark, …)
  • build a tiny wireless VoIP tapping system in a single chip Linux unit
  • build a complete VoIP tapping system (rtpbreak would be just the RTP dissector module!)

This project is released under license GPL version 2.

You can download rtpbreak 1.3a here:


Or read more here.


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    3 Responses to “rtpbreak 1.3a Released – RTP Analysis and Hacking”

    1. macdaddy 8 May 2008 at 7:43 pm Permalink

      Working on trying to sniff my VoIP phone calls. Since i have voIP in my house. Seems like a really great tool. Looked around the site, and have really liked the other tools he has to offer.

      And just started to comment seeing as i havent before. Though ive been on and off the site for about 6 months to a year.

    2. xenion 18 May 2008 at 6:41 am Permalink

      the antifork server experienced dns problems the last week, now solved :)


    3. Jinesh Doshi 21 May 2008 at 11:28 am Permalink

      Guys checkout some other tools also. http://xenion.antifork.org/