This archive includes presentation slides for the talk VoIP Wars: Destroying Jar Jar Lync along with the Viproxy tool used to perform the attack.
You can download it from the following link: https://packetstormsecurity.com/files/download/134577/Destroying_Jar_Jar_Lync.tgz
Source: https://packetstormsecurity.com/files/134577/VoIP-Wars-Destroying-Jar-Jar-Lync.html