Viproy Voip Penetration and Exploitation Kit is developed to improve quality of SIP penetration testing. It provides authentication and trust analysis features that assists in creating simple tests.
You can download it from the following link: https://packetstormsecurity.com/files/download/127903/viproxy-1.0.zip
Source: https://packetstormsecurity.com/files/127903/Viproy-VoIP-Penetration-Exploitation-Kit-1.0.html