Distribusi pentest yang mengkhususkan pada sistem Voip. VAST is a Linux-based security distribution specifically designed for pentesting VoIP and UC networks. It enables security professionals and UC owners to more rapidly perform VoIP security assessments, or enumerate vulnerabilities in IP Phones or IP PBX servers within a lab or testbed. With VAST, a security consultant has every tool necessary to carry out a successful onsite or remote penetration test or vulnerability assessment against a UC network. VAST is built on Ubuntu 9.04 and includes all of the open source VIPER Lab tools, in addition to some other network pentest tools. VAST has been thoroughly tested in the VIPER Lab not only for operability, but for ease of use as well. In addtion, a repository system for updating VIPER Lab tools. When a new version of a VIPER tool is released, it's as easy as apt-get update.