Understanding and Troubleshooting SIP

[LeeAndro]

Last Updated 10/2021MP4 | Video: h264, 1280x720 | Audio: AAC, 44.1 KHz, 2 ChGenre: eLearning | Language: English | Duration: 55 lectures (6h 11m) | Size: 3.31 GB

How SIP works
Methods, Errors and Fuctions
Troubleshoot SIP
Resolve problems with SIP and billing
How to use SIP in a NAT environment

Computer Networks
Voice over IP
Linux knowledge is not mandatory, but helps.​

This training was created for the IT staff of mobile/telecom providers, ITSPs (Internet Telephony Service Providers), Consultants, Call Centers or any other company using IP telephony. The performance of these professionals is essential to reduce the churn and the stress of the operation. SIP troubleshooting is a key skill in these scenarios.

It is a result of years in the frontlines of the tech support of a softs-switch developer, troubleshooting hundreds of deployments.

I have prepared two FREE gifts for this training. The first is a Virtual Machine in open virtualization format with a SIP server running as a Proxy, B2BUA and Redirect. The second is a list of SIP responses with comments on how to troubleshoot the most common SIP error messages. I sincerely hope you enjoy this training.

There are 5 practical labs to do with your VM and softphones in this training.

Content

Section 1 - Introduction to SIP

Why is SIP relevant

Introduction to SIP

Complete SIP Proxy free

SIP Registration Process and Demo

Capturing SIP Packets with wireshark and sngreo

Assignment: Analyzing a SIP registration

Session Setup and Management

SIP trapezoid and ladder

Server Architectures

SIP headers and Body

SIP Call Flow Demo

Assignment: Analyze a SIP Call

Section 2 - SIP Capturing and Filtering

SIP Capture Introduction

Demo context

Demo ngrep

Demo sngrep

Demo wireshark

Section 3 - SIP Dialogs, Transactions and rs

SIP Transactions and rs

SIP Dialogs

Assignment: Transactions and Dialogs

Section 4 - Handling and analyzing Media

Media Encoding

Session Description Protocol

Real Protocol and Real Control Protocol

Voice Quality

Assignment 4: Analyzing Session Description Protocol

Section 5 - Nat Traversal

NAT Introduction

NAT Types

Manual Configuration

Symmetric Response Routing RFC3581

Application Layer Gateway

COMEDIA

STUN

TURN

NAT Conclusion

Section 6- Troubleshooting

Troubleshooting Methodology

Handling Signaling Issues

Handling Media Issues

Handling Billing Issues

Section 7 - Redundancy and Load Balancing using DNS

SIP Load Balancing and Redundancy using DNS

Redundancy Demo

Redundancy and Load Balancing Summary

Section 8 - Labs

Installing a SIP Proxy

Preparing the environment

Creating domains and users

and configure softphones

Capturing a SIP registration

Capturing a SIP Call

Support Analysts on Internet Telephony Service Providers, Telecom and Mobile companies
Support Analysts on companies using VoIP and SIP
IT consultants
Contact Center IT staff

HomePage:

https://anonymz.com/https://www.udemy.com/course/understanding-and-troubleshooting-sip

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