Introduction to SIP
4.4 (56 ratings)
Instead of using a simple lifetime average, Udemy calculates a course's star rating by considering a number of different factors such as the number of ratings, the age of ratings, and the likelihood of fraudulent ratings.
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Introduction to SIP

Learn how to implement, support, and troubleshoot SIP by understanding the protocol.
4.4 (56 ratings)
Instead of using a simple lifetime average, Udemy calculates a course's star rating by considering a number of different factors such as the number of ratings, the age of ratings, and the likelihood of fraudulent ratings.
199 students enrolled
Created by Chris Morin
Last updated 4/2017
Current price: $10 Original price: $20 Discount: 50% off
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  • 2 hours on-demand video
  • 1 Supplemental Resource
  • Full lifetime access
  • Access on mobile and TV
  • Certificate of Completion
What Will I Learn?
  • Identify SIP Packets and Their Pourpose
  • Troubleshoot the Basic Functionality of SIP
  • Understand how SIP works in Telephony
  • Apply SIP Knowledge to your Work Enviornment
View Curriculum
  • Basic IT Concepts

Hey there! 

Welcome to this Introduction to SIP Course! I'm Chris Morin, and I'd like to welcome you to this wild world of SIP!

Working in Telecom, I've noticed that telecom has begun to take over all departments of IT. More frequently there is no longer a separate "Telecom" team because Telecom Touches Everything now

This course is designed to enhance your skill-set by bringing you up to speed on how SIP works in today's modern telephony infrastructure.

Are you a Server Administrator? Congratulations, modern phone systems now run on top of your servers.

Are you a Network Administrator? Congratulations, modern phone systems now communicate on top of everything else in your environment!

Are you a Telecom Engineer? Congratulations, modern phone systems are moving away from being separate "boxes" of technology. We've now got to get along with the neighbors!

Are you an IT Manager? Congratulations, you've identified a trend that the industry is going through - a migration to SIP! For better or for worse you ask? You'll see!

No matter where you come from in the IT world, I can guarantee that SIP is going to touch you in some way, shape, or form in the future. I designed this course to enhance your ability to work with the SIP protocol in your work environment, troubleshoot effectively, and make competent infrastructure decisions surrounding Telecom.

This course covers the foundations of SIP, and should provide you with a working knowledge of the protocol that can be applied in every day work life.

What are you waiting for? If you don't understand SIP sooner rather than later, you're sure to be blindsided by it. Let's be proactive, and learn the basics of SIP!

Who is the target audience?
  • IT Professionals or Students
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Curriculum For This Course
29 Lectures
Course Introcution
2 Lectures 02:46

A brief introduction of myself to you, and how you can get in touch with me.

Preview 01:28

Let's talk about what's in this for you! I'm aiming to deliver real-world useful information for you to apply in your daily work life!

Preview 01:18
Introduction to Telecommunications
2 Lectures 13:52

Telecom has come a long way over the years! This is a brief review of where we came from, and how we got where we are today.

Preview 09:20

The very first dive into the SIP Protocol. SIP has truly changed the playing field - but it's not perfect.

A New Challenger Approaches: SIP
SIP Signalling Messages
7 Lectures 13:56

Let's dive into the fun: SIP Signaling! This is a brief video outlining how SIP Signaling operates.

SIP Signaling

Overview of SIP 100 Provisional Messages.

SIP 100 Messages

Overview of SIP 200 Success Messages.

SIP 200 Messages

Overview of SIP 300 Redirection Messages.

SIP 300 Messages

Overview of SIP 400 Client Error Messages.

SIP 400 Messages

Overview of SIP 500 Server Error Messages.

SIP 500 Messages

Overview of SIP 600 Global Error Messages.

SIP 600 Messages
SIP Media
2 Lectures 08:28

Without SIP Media, we don't have a phone call. This video is an overview of how Media ties to the Signaling protocol.

SIP Media

Diving into a little more detail, we will begin to understand the function of SDP in a SIP Packet, and how it applies to establishing a media session.

Understanding SDP
How to Speak SIP
3 Lectures 15:16

Learning to Speak SIP does not have to be like learning a new language - but it does take some effort. This lecture, we begin to understand the components involved in a SIP session and what it looks like to trace the SIP packets.

The Back to Back User Agent & Ladder Diagrams

In this lecture, we learn how to install Wireshark from Scratch, and run a trace.

Wireshark 101

In this lecture we go through an example SIP Packet Capture to review how calls work in the real world.

Contents of SIP Packets
SIP Tracing 101 - Practice Examples
4 Lectures 16:56

Here we're going to install FreePBX into VirtualBox so we have a phone system to work with.

Preview 05:57

In this short video we configure two extensions in FreePBX for our phones to register to.

Configuring FreePBX Extensions

Here we install two Zoiper clients and get them to register to our phone system.

Setting up Zoiper Soft-Phone

Now for the fun part! We are going to setup tracing on the phone system, make a phone call, and review the details of that trace with wireshark.

Preview 06:47
Troubleshooting Tips & War Stories
7 Lectures 49:57

Welcome to the Troubleshooting Section! This section is mostly delivered in a non-scripted, very conversational manner. I wanted to share with you all some stories and advise as I would my peers and friends.

Welcome to the Troubleshooting Section

Here I introduce the troubleshooting process I use, teamed up with a really bad(good) metaphor. 

My Troubleshooting Process

What is Noise? Where does it come from? How can we fix it?

Phone Calls with Noise

All SIP Providers suck. Navigating the test & turn up can be the most challenging part of a SIP implementation.

Setting up SIP Trunks with Providers

Learn why I gave Sangoma a nickname.

Why I Hate Sangoma

Ringback, the ringing you hear when you place a phone call, can be troublesome in a SIP environment.

Troubleshooting No Ringback

"My phone call sounds horrible!" They say. Alot. All the time.

Troubleshooting Bad Call Quality
Closing Thoughts & Additional Information
2 Lectures 02:53

A Brief lecture identifying great additional material to have in your back pocket for working with SIP.


It's been fun, thanks!

Contact Information
About the Instructor
Chris Morin
4.4 Average rating
55 Reviews
199 Students
1 Course
IT Business Consultant

I've worked my entire career around a passion for solving business problems with technology. As a result, I've fallen into many advanced consultative roles for various organisations. Specifically, I'm an expert in enhancing business operations through seamless communication between various technologies worldwide.