Training: Practical VoIP Debugging

Step It Up

The number of corporate VoIP subscribers worldwide is forecasted to reach 204.8 billion in 2020. As this technology’s prevalence grows, so will the need to debug potential issues. This intense one-day course provides elementary techniques and commands to debug and troubleshoot VoIP networks. It includes dropped packets, latency issues, and malicious activity across the network. We’ll teach you how to analyze your network traffic, provide the tools to filter and drill down into that traffic to locate the cause of the problem.

Duration: One Day
Cost: R3,000.00
T. +27(0)21 100 3599


Who should attend?

  • Anyone in IP from Junior to Senior
  • Network Traffic Analysers
  • IT Security Professionals
  • System Administrators
  • First, Second, Third Line Support

Course Outline

VoIP Equipment Outline:
  • Servers (Asterisk/3CX /etc.)
  • Extensions (Handsets/ATAs/Softphones)
  • Servers IP address, Firewall, NAT and ports
  • Extension, Codecs , UDP/TCP RTP
  • Digit interpretation and permissions (0/27)
  • Handsets ability to capture packets
  • What to do with packets? (Wireshark)
SIP Components and Language:
  • Looking at expected transactions
  • Identifying possible issues (ports, security)
  • Making sense of flow
  • Identifying the faulty party and acting
Setting-Up for Fault Finding:
  • Capture options and making traces available
  • Equipment capture options
  • Ethernet TAPs
  • Setting up test Exts for tracing
  • Splitting capture into manageable sections
  • Using recordings as additional help
Command Line Options vs Web:
  • Speed of results
  • Available tools
  • Linux/asterisk console commands
  • Responsibilities
  • Reporting

We also offer cost effective in-house training. This workshop can be held exclusively as an in-house option for your organisation.
We provide a 20% discount for those clients who opt to use their own training venue with a minimum of 10 candidates.
Candidates receive a Certificate of Attendance on successful completion.