Wireshark: VoIP

Take an in-depth look at Voice over IP (VoIP) protocols and components, and discover how to troubleshoot VoIP calls.

Introduction

• Understand and troubleshoot VoIP
• Getting the most out of this course

1. VoIP Overview

• Voice over IP (VoIP)
• VoIP and Unified Communications (UC)
• Digitizing a signal
• VoIP components

2. Protocols

• Protocols overview
• TCP/IP
• DHCP
• Real-Time Transport Protocol
• Real-Time Control Protocol
• Skinny Client Control Protocol (SCCP)

3. Connecting Systems

• Gateways and gatekeepers
• Understanding MGCP and Megaco (H.248)
• Session Initiation Protocol
• H.323 family
• Establishing an H.323 connection
• Evaluating H.323

4. Network Operations

• Performance overview
• Quality of service
• Domain Name System
• Directory integration
• Using STIR/SHAKEN to reduce robocalls

5. Wireshark Statistics

• Dissecting a VoIP call
• Evaluating call quality
• Analyzing an RTP stream
• Recognizing jitter

Conclusion

• Next steps