Guys, if you are into VoIP auditing, the Grugq has finally released his long waited Tactical VoIP Toolkit. I was using this tool at HiTB when he first released it to the students attending his training. It was written in Python and best of all, it is customizable. You can write your own VoIP security tools on top of the Toolkit. This makes it very portable and flexible in terms of the tool's function. Well, currently there is only siping and ravage but its sufficient enough to perform basic audit and analyzation.
"The Tactical VoIP Toolkit (TacVTK) is a collection of tools designed specifically for VoIP security assessment. The TacVTK's functionality will expand in as new tools are developed and integrated."
Please visit the Grugq's site at http://www.tacticalvoip.com to download this free and powerful tool. Hey Grugq, big ups to you. :)