Benjamin Pfister
- Head of Networking and Telecommunication at City of Kassel
- Author for several IT-Magazines (Heise, iX, IT-Administrator)
- VoIP and Network Consultant
- Freelance Trainer
- System Administrator for Telecommunication and Networking at City of Kassel
- Service Technician at Deutsche Telekom
Session
Nearly every organization is using Voice over IP (VoIP) in their networks. But sometimes Administrators and Engineers are facing complex challenges. At the signalling part they see incompatibilities between vendors from over 100 RFCs regarding SIP or some weird SIP stack implementations. On the audio side, end-users sometimes experience bad quality because of jitter, loss or latency or they have one-way audio effects because of bad media descriptions. All this comes coupled with the increasing use of encryption and NAT by cloud PBX solutions such as Teams Phone or Webex Calling.
Attendees will explore the fundamentals of SIP and RTP paired with the use of integrated tools in Wireshark for an effective and efficient troubleshooting. They get some real-world examples and they will be told how these were solved using Wireshark.