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Practical Techniques for Analyzing VoIP Traffic

Learn to capture and analyze suspicious data on VoIP networks.

GK# 9602

Course Overview


VoIP network analysis is a specialized subset of traditional network analysis and encompasses not only the skill of capturing data, but also the ability to discern unusual patterns hidden within seemingly normal network traffic. Through real-world examples and hands-on exercises, you will gain a set of analysis techniques focusing on the use of vendor-neutral, open source tools to provide insight into:

  • VoIP network analysis fundamentals
  • Data recorder technology and data mining
  • VoIP-focused network security principles, including encryption technologies and defensive configurations of network infrastructure devices
  • Recognition of a variety of factors that affect VoIP-based networks and the quality of the voice data
  • Key VoIP-related protocols
  • Open source VoIP network analysis tools
  • Specialized VoIP network analysis, including audio data traffic reconstruction and viewing techniques

You will receive:

  • Training binder with numerous baseline trace files
  • DVD with VoIP and networking tools
  • Library of VoIP network analysis reference documents

You are required to bring your own laptop.

What You'll Learn

  • Principles of VoIP network analysis and how to apply them
  • Key VoIP-related protocols, including SIP, MGCP, SCCP, UNISTEM, and H.323, and related supporting protocol architectures
  • Analyze and evaluate latency, out-of-sequence packets, jitter, and Quality of Service (QoS) and how the end user experiences each
  • Configure various open source tools for VoIP analysis
  • Utilize tools to recognize traffic patterns associated with VoIP network behavior
  • Reconstruct VoIP conversations for detailed analysis and quality assessment purposes
  • Recognize potential VoIP network security infrastructure misconfigurations


  • Basic familiarity with TCP/IP networking, VoIP fundamentals, and basic network infrastructure devices such as switches, routers, etc.

Recommended courses:

Who Should Attend


Network engineers and VoIP and network telephony personnel who possess basic- to intermediate-level general VoIP, telephony, and networking knowledge

Course Delivery
Request this course in a different delivery format.