This presentation will be a continuation of my presentation at 32nd CSI. My presentation for ShmooCon will build on the Level one analysis outlined at CSI to include more attacks and threat analysis (i.e. Levels two and Level three). Shawn Merdinger is a security researcher based in Austin, Texas. He is currently employed by TippingPoint, a division of 3Com, where he conducts VoIP security analysis. He previously was a Research Engineer with Cisco Systems' Security Technologies Assessment Team (STAT) and Security Evaluation Office (SEO) where he performed vulnerability assessments on a variety of devices, technologies and implementations. Mr. Merdinger holds a master's degree from the University of Texas at Austin where his studies focused on computer and network security. When not breaking stuff, he is an avid supporter of non-profit AustinFreeNet working to bridge the Digital Divide.