Understanding and Troubleshooting SIP
4.1 (631 ratings)
Course Ratings are calculated from individual students’ ratings and a variety of other signals, like age of rating and reliability, to ensure that they reflect course quality fairly and accurately.
2,828 students enrolled

Understanding and Troubleshooting SIP

Be a SIP hero and help your company to thrive in the market
4.1 (631 ratings)
Course Ratings are calculated from individual students’ ratings and a variety of other signals, like age of rating and reliability, to ensure that they reflect course quality fairly and accurately.
2,828 students enrolled
Last updated 6/2020
English
Current price: $13.99 Original price: $19.99 Discount: 30% off
5 hours left at this price!
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This course includes
  • 6.5 hours on-demand video
  • 16 downloadable resources
  • Full lifetime access
  • Access on mobile and TV
  • Assignments
  • Certificate of Completion
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What you'll learn
  • Troubleshoot SIP networks
  • Design SIP networks
  • Optimize SIP networks
Requirements
  • Computer Networks
  • Voice over IP
Description

Every single ITSP (Internet Telephony Service Provider) has a team of tech representatives. The performance of these professionals is essencial to reduce the churn and the stress of the operation. Other companies as well, such as Call Centers and PBX operators rely on SIP specialists to keep things running smoothly. Many companies also hire contractors to provide solutions and tech support. This training was created to improve the troubleshooting and design skills for these professionals.  

Content:

Section 1 - Introduction to SIP

  1. SIP devices and architecture
  2. SIP message components
  3. SIP methods
  4. SIP error messages
  5. The Registration Server
  6. Softphone Configuration
  7. Capturing SIP packets in Wireshark
  8. NAT Traversal
  9. STUN Demo
  10. TURN Demo

Section 2 - Handling and analyzing Media

  1. Media Encoding
  2. Session Description Protocol
  3. Real Time Protocol and Real Time Control Protocol

Section 3 - Advanced SIP, transactions, dialogs and routing

  1. SIP Transactions
  2. SIP Dialogs
  3. SIP Routing

Section 4- TroubleShooting

  1. TroubleShooting Methodology
  2. Handling Signaling Issues
  3. Handling Media Issues
  4. Handling Billing Issues



Who this course is for:
  • Support Analysts on Internet Telephony Service Providers (ITSPs)
  • Support Analysts on companies using IP PBXs
  • Technical Sales on ITSPs
  • IT consultants
Course content
Expand all 45 lectures 06:21:25
+ SIP Basics
12 lectures 01:33:06

The objective of this quiz is to help you to memorize concepts learned in the chapter.

Introduction to SIP
4 questions
SIP registration demo
06:32
LAB 1 - Installing a SIP proxy
03:53
LAB 2 - Creating a domain and users for the training
02:15
LAB 3 - Softphones configuration
06:41
In this assignment you are going to unregister and register a phone. You will use sngrep to capture and analyze a registration process and answer the following questions. Alternative: If you don´t want to build your own Lab environment, use the file registration.pcap from the resources.
Capture a registration using sngrep
5 questions
Solution to Capture a registration using sngrep
05:20

This quiz will help you to memorize important concepts in registrations.

SIP registrations
5 questions
SIP Call Flow
11:14
SIP headers and body
09:30
SIP Headers and Body
3 questions

This video is a replacement for the old SIP Headers in Action

SIP Call Flow Demo
08:43
Capture a SIP call and answer the following questions. (Alternative) If you don't want to create the lab environment you may also use wireshark in your workstation. Dowload the call.pcap from the resources of the Call Flow Demo and ue it to answer the questions below.
Capture a SIP call
9 questions
Solution to the assignment "Capture a SIP call"
11:19
+ SIP Capture and Filtering
7 lectures 40:16
SIP capture introduction
03:26
NGREP DEMO
05:27
SNGREP DEMO
05:28
WIRESHARK DEMO
08:27
SIP Packet Capture Filtering
04:15
Ngrep SIP Capture Filtering
08:00
SIP Pre and Post filtering in Wireshark
05:13
+ SIP Dialogs Transactions and Timers
2 lectures 23:15
SIP Transactions and Timers
13:32
SIP Dialogs
09:43
+ SIP NAT TRAVERSAL
3 lectures 28:40
SIP NAT Traversal
17:18
STUN DEMO
05:53
TURN DEMO
05:29
+ Media handling and voice quality
6 lectures 38:43
Media Handling and RTP
13:13
Bandwidth Calculator Demo
03:01
Session Description Protocol
04:26
SDP Demo
04:19
Voice Quality
08:49
RTCP-XR DEMO
04:55
+ TroubleShooting
4 lectures 51:32
Troubleshooting Methodology
08:43
Troubleshooting SIP Signaling
19:18
Troubleshooting Audio Problems
12:49
Troubleshooting Billing
10:42
+ Redundancy and Load Balancing using DNS
3 lectures 30:11
SIP Redundancy and Load Balancing using DNS
05:56
Redundancy Demo
21:26
Redundancy and Load Balancing Summary
02:49
+ This section was transfered to the first chapter and will be removed.
5 lectures 42:06
Lab 1 - Installing a SIP Proxy
04:14
Lab 2 - Creating SIP Domains and Users
02:18
Lab 3 - Installing Softphones and Registering Users
07:33
Lab 4 - SIP Registrations
09:35
Lab 5 - SIP Calls
18:26
+ Optional Lectures
2 lectures 22:30
SIP Methods
10:14
SIP Error Messages
12:16
+ Bonus Section
1 lecture 11:06
SipPulse your partner in Voice over IP
11:06