Analyse VOIP traffic packets for Security Vulnerabilities

We will supply a traffic log of VOIP traffic on phone and server device. We would like a detailed analysis to identify vulnerabilities. - Provide screenshots using traffic analysis (Wireshark or similar) - Make substantiated comments on any vulnerabilities in relation to use of protocols, authentication, data and more. Please confirm you have VOIP /administration security engineering experience. The deliverable will be a 2-4 page report with detailed comments on any key vulnerabilities identified. You should be able to start with 2 days and complete within 2 days.