
VideoSnarf is a new security assessment tool that takes an offline pcap as input, and outputs any detected media streams (RTP sessions), including common audio codecs as well as H264 Video support.
* http://ucsniff.sourceforge.net/videosnarf.html
ACE (Automated Corporate Enumerator, bundled with UCSniff) works by using DHCP, TFTP, and HTTP in order to download the VoIP corporate directory. It then outputs the directory to a text file, which can be used as input to other VoIP assessment tools.
You can run UCSniff in passive mode or man-in-the-middle with ARP poisoning. This should only be used on networks you own and/or have explicit permission to test on.
You can find this tool on VAST and Blackbuntu (penetration testing distributions) along with a chain of other utilities useful for learning and research purposes.