Welcome to Telecom Training Channel, featuring online telecom training and VoIP training. The Telecom Training Channel is a proud affiliate sales agent of Teracom Training Institute's CBT elearning online downloadable versions of Teracom Training Institute's acclaimed video training courses on telecom, datacom, IP, networking, MPLS, telecommunications, wireless, cellular, Voice over IP, VoIP and much, much more.

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Online Telecom Courses and Telecommunications Certifications

The best online telecom training courses are from Teracom Training Institute. Teracom has built a huge reputation in the US and Canada over the years as the best in the "telecom-for-non-engineers" training business. They've been in business for two decades, and have a customer list that includes AT&T, the CIA, NSA, IRS, FAA, US Army, Navy, Marines and Air Force, Bank of America, Wells Fargo Bank - and managers, purchasers, sales people, software designers, finance people and telecom users at thousands of public and private organzations ranging from Oneida Tableware to the SF Giants and everything inbetween. Teracom has even been awarded a 5-year supply contract ("GSA Schedule") to the United States government for this very training.

Full details on Teracom online telecom training courses

Available Online Courses

L2101 POTS AND THE PSTN outline brochure course intro sample: the voiceband
L2106 WIRELESS TELECOMMUNICATIONS outline brochure course intro sample: 3g cellular and cdma
L2112 THE OSI LAYERS AND PROTOCOL STACKS outline brochure course intro sample: protocols and standards
L2111 ETHERNET, LANS AND VLANS outline brochure course intro sample: lan cables
L2113 IP NETWORKS, ROUTERS AND ADDRESSES outline brochure course intro sample: NAT
L2114 MPLS AND CARRIER NETWORKS outline brochure course intro sample: tcp/ip over mpls

Available Certification Packages

CTNS Certified Telecommunications Network Specialist (recommended choice)

The CTNS Certification Package includes six courses covering the PSTN, Wireless, OSI Layers, Ethernet, IP and MPLS plus TCO CTNS Certification, Certificate, Letter of Reference and all of the other great benefits of TCO Certification. full details

The PSTN 2201 The PSTN
2206 Wireless Telecommunications
2212 OSI Layers and Protocol Stacks
2211 Ethernet, LANs and VLANs
2213 IP Addresses, Packets and Routers
2214 MPLS and Carrier Networks

Free lesson 1: Course Introduction

The course begins with explaining Plain Ordinary Telephone Service (POTS) and Public Switched Telephone Network(PSTN). During this course, you will develop a solid understanding of the beginning of it all: the fundamentals of telephone systems. This includes: Customer Premise and Central Office, loops, trunks, remotes, circuit switching, how a telephone call is connected end-to-end. We will cover LECs, CLECs and IXCs, sound, DTMF and SS7, analog and the voiceband, twisted pair.

Course Lessons
1. Introduction
2. History of Telecommunications (USA and Canada)
3. The Public Switched Telephone Network (PSTN)
4. Analog Circuits and Sound
5. The Voiceband
6. Plain Ordinary Telephone Service (POTS)
7. Signaling: Pulse Dialing and Dual Tone Multiple Frequency (DTMF)
8. Signaling System 7 (SS7)


Based on Teracom's well known Course 101, fine tuned and built from over 20 years of instructor-led training, we will get right through the common jargon to help demystify telephony and telephone systems, explain what the jargon and buzzwords mean, their underlying ideas, and how all of it works together… in easy to understand plain English. The courses include photos of actual equipment from inside a Central Office along with the outside plant. This multimedia course is a perfect way to help you get up to speed on all things about traditional telephony.The CTNS Certification Package provides you with the training needed to become a Subject Matter Expert in Telecom, Datacom and Networks, from POTS, to wireless, to MPLS… plus it comes with a certificate to prove you have done it.

CIPTS Certified IP Telecom Network Specialist

The CIPTS Certification Package includes four courses covering the OSI Layers, Ethernet, IP and MPLS plus TCO CTNS Certification, Certificate, Letter of Reference and all of the other great benefits of TCO Certification.

OSI layers Course 2212: OSI Layers and Protocol Stacks
• Protocols and standards. The OSI Model.
• Layers: Layer 2 vs. Layer 3. Examples.
• Protocol stacks. How protocol stacks work.
Course 2211: Ethernet, LANs and VLANs
• LAN fundamentals. Ethernet and 802 standards.
• MAC addresses and MAC frames
• LAN switches, broadcast domains and VLANs
Course 2213: IP Networks, IP Addresses, Packets and Routers
• Packet network fundamentals. Routers.
• IP packets and IP addresses
• Static & dynamic, public & private addresses
• Network Address Translation (NAT). IPv6.
Course 2214: MPLS and Carrier Networks
• Carrier network basics. Customer Edge (CE) device
• Service Level Agreements and CoS
• MPLS for traffic management, VPNs, integrated access

Included within the CIPTS package are four courses. These 4 courses are directly related to what is referred to as the "new" telecom network.  The "new" telecom network is IP-based telecommunications. CIPTS is ideal for the person needing to bring themselves up to speed on IP networks. Focus is given from the point of view of a carrier telecom network. CIPTS is not covering traditional telephony or wireless.

Completing a CIPTS package will provide you with a solid, well structured comprehension of IP networking, covering the OSI Layers, Layer 2 Ethernet, MAC frames, Layer 3 IP packets, routers and their addresses, IPv6, plus (CS)carrier services with Frame Relay, and a detailed understanding in MPLS.

Certifications - Exam Only

CTA Certified Telecommunications Analyst

You may take just a TCO CTA certification exam without courses. This option comes with TCO certificate, letter of reference and the many all great benefits of a TCO Certification. The TCO CTA certification is the final exam and certification for this Teracom training:

On completion of an instructor-led course 101, DVD or textbook training, you can register for the TCO CTA certification. The exam is written using the myTeracom Learning Management System.
Course 101 attendees and DVD package students are provided a coupon to get the certification.The exam is included with these purchases as a free bonus.

register-now browse-catalog price-list freepreviews brochure-100

Are you wondering: "Should we get the DVDs or the online courses?"

That's easy! Get both!
You can buy the DVD package V530 Full Library, and receive equivalent online courses for five people entirely free! details
This is CTA certification for five people!

Telecommunications and VoIP Training Video Courses Online


Click on the links to view full-quality video. Scroll down for a detailed description of each Teracom video.

Bonus: TCO Certified Telecommunications Analyst (CTA) certification included at no extra charge! Check it out!

Publisher link: www.teracomtraining.com/video_courses.htm

V1 Fundamentals of Telecom 1 - full quality preview Video Tutorial V1: PSTN and Loops Telecommunications training on DVD
V2 Fundamentals of Telecom 2 - full quality preview Video Tutorial V2: Voice DigitizationTelecommunications training on DVD
V3 Fundamentals of Datacom and Networking - full quality preview Video Tutorial V3: Packets vs. Frames Datacom and networking training on DVD
V4 Understanding Networking 1 - full quality preview Video Tutorial V4: The OSI Layers: The FedEx Analogy Networking training on DVD
V5 Understanding Networking 2 - full quality preview Video Tutorial V5: VPNs Networking and security training on DVD
V6 Understanding Wireless 1 - full quality preview Video Tutorial V6: Cellular Wireless training on DVD
V8 Understanding Voice over IP 1 - full quality preview Video Tutorial V8: Softswitches and Visit to a CO switch VoIP training courses on DVD
V9 Understanding Voice over IP 2 - full quality preview Video Tutorial V9: QoS and Traffic Conditioning VoIP training courses on DVD
V10 Understanding Voice over IP 3 - full quality preview Video Tutorial V10: SIP VoIP training courses on DVD

Course V1: Fundamentals of Telecom 1

Video Icon The PSTN - Telephony - The Telecom Industry - Telecom Equipment
DVD Length: 142 min (2 hours 22 min)
55 pg student manual
Produced 2006

V1 Fundamentals of Telecom 1 - full quality preview · Video Tutorial V1: PSTN and Loops · Telecommunications training on DVD

It all starts with the Public Switched Telephone Network (PSTN) and Plain Ordinary Telephone Service (POTS). We’ll begin with the basics of telephony: loops, trunks, circuits, analog, the voiceband... fundamentals that are key to understanding of newer technologies and services. To complete the picture, we take a practical journey through different types of equipment. We'll review switches, PBXs, Centrex, multiplexers and routers, as well as ancillary equipment like ACDs, voice mail and interactive voice response (IVR) systems. With this framework in place, we'll review the telecommunications industry and understand the main players and competitors, how Local Exchange Carriers connect to Inter-Exchange Carriers and how CLECs fit into the picture. The topics in this video course - how the telephone system and industry work, provide the essential foundation on which everything else, including digital communications, data circuits and networking are built. 2 hours 22 minutes of career- and productivity-enhancing training! Many people tell us this is training they wish they'd had years ago!

Part 1 Fundamentals of Telephony
  • 1.03 The Public Switched Telephone Network (PSTN)
  • 1.05 Analog Circuits
  • 1.07 What is Sound?
  • 1.09 The Voiceband
  • 1.11 Plain Ordinary Telephone Service (POTS)
  • 1.13 DTMF Address Signaling
  • 1.15 Signaling System 7 (SS7)
Part 2 Telecom Equipment
  • 2.03 Telephone Switches
  • 2.05 PBX vs. Centrex
  • 2.07 Voice VPNs
  • 2.09 Call Centers
Part 3 The Telecommunications Industry
  • 3.03 US Domestic Telcos
  • 3.05 AT&T and Verizon
  • 3.07 Canadian Telephone Companies
  • 3.09 PSTN Switching Centers Before Competition
  • 3.11 Accessing The Interexchange Carriers
  • 3.13 Competitive Local Exchange Carriers (CLECs)

Course V2: Fundamentals of Telecom 2

Video Icon The Internet • ISPs • The Web • IP Security
• Viruses • Firewalls • Encryption • IPsec • VPNs
DVD Length: 161 min (2 hours 41 min)
64 pg student manual
Produced 2006

V2 Fundamentals of Telecom 2 - full quality preview · Video Tutorial V2: Voice Digitization · Telecommunications training on DVD

In course V2, we learn the concepts, technologies and standards for transmitting voice calls with the traditional techniques. We'll provide a full understanding of what exactly "digital"  means and how it is actually implemented. You will learn about DS0 and digital hierarchy, and you'll take an interesting practical tour of digital circuits that includes T1, T3, SONET and ISDN. We'll see, in detail, how voice, data and video is integrated through TDM and channelization.

We'll follow with a closer look at just how this is done. We'll explain multiplexers, copper, pulses and repeaters, fiber rings, fiber optics and DWDM. Many of the transmission systems we presently have in place have been designed for digital voice communications with these techniques. They are also used in data and networking. This course gives you  the concrete knowledge of the infrastructure needed to have a complete understanding of circuits and the services.

Part 1 Digital Communications
  • 1.03 Why Digital?
  • 1.05 Analog and Digital: What Do We Really Mean?
  • 1.07 Continuous Signals, Discrete Signals
  • 1.09 Voice Digitization (Analog ? Digital Conversion)
  • 1.11 Voice Reconstruction (Digital ? Analog Conversion)
  • 1.13 Voice Digitization Summary
  • 1.15 The Digital Hierarchy: Industry Standard Line Speeds
  • 1.17 Popular Technologies: Digital Carrier Systems
  • 1.19 ISDN BRI and PRI
  • 1.21 Digital Circuit Voice Applications
  • 1.23 Digital Circuit Data Applications
  • 1.25 Digital Video
  • 1.27 Integration: Voice, Video, Data
Part 2 Transmission Systems
  • 2.03 Time Division Multiplexing
  • 2.05 T1 Carrier System
  • 2.07 T1 Basics: Multiplexers
  • 2.09 Framing and Channels
  • 2.11 Pulses and Repeaters
  • 2.13 How T1 is Provided
  • 2.15 Fibers and Cables
  • 2.17 SONET and DWDM: Core Networks
  • 2.19 International Digital Hierarchies

Course V3: Fundamentals of Datacom and Networking

Video Icon WANs and LANs - MAC Frames vs. IP Packets
- The Network "Cloud"
DVD Length 106 minutes (1 hours 46 minutes)
65pg student manual
Produced 2006

V3 Fundamentals of Datacom and Networking - full quality preview · Video Tutorial V3: Packets vs. Frames · Datacom and networking training on DVD

In this course, we will start with a data communications circuit. We establish a model, provide examples and give context for all of the components. We'll follow with a review of different circuit configurations ( LANs and WANs included).
The second chapter will discuss how data becomes formatted for transmission. We begin with older concepts like “synchronous” and “asynchronous”, then discuss the newer ideas consisting of frames and packets. We'll understand the relationship between frames and packets, their addresses, and go over structure of IPv4 packets.
We'll complete this course by explaining the “Network Cloud”, what is going on in the cloud and why people use clouds to draw networks.

Within this set of topics (the understanding of packets and frames, the addresses on them, how packets and frames are related) and the concept that three types of network services exist– and three varieties of edge equipment - is the foundation necessary all further studies of LANs, WANs, IP and practically any type of communications, including Voice over IP.

Part 1 Introduction to Data Communications and Networking
  • 1.03 Data Circuit Model
  • 1.05 Data Terminal Equipment (DTE)
  • 1.07 Analog and Digital Data Circuits
  • 1.09 Data Circuit Terminating Equipment (DCE)
  • 1.11 Configuration Example: Point-to-Point
  • 1.13 Multidrop Circuits
  • 1.15 LANs
  • 1.17 Wide Area Networks
Part 2 How Data is Formatted for Transmission
  • 2.03 Data Communications Basics: Bits and Bytes
  • 2.05 ASCII Code Set
  • 2.07 “Asynchronous”
  • 2.09 Frames
  • 2.11 Details for Reference: Cyclic Redundancy Check
  • 2.13 Packets
  • 2.15 Packets vs. Frames
  • 2.17 IP Packets
Part 3 The Network “Cloud”: How Data Circuits are Actually Provisioned
  • 3.03 Anatomy of a Digital Circuit
  • 3.05 Common Carriers’ Transmission Networks
  • 3.07 Network Equipment: How and Where Each is Used

Course V4: Understanding Networking 1

Video Icon OSI Layers - Protocol Stacks
- The FedEx Analogy IP Addressing, DHCP, NAT - Bandwidth on Demand Services Frame Relay - ATM - MPLS
Length 127 minutes (2 hours 7 minutes).
Available 58-page student manual.
Produced 2006.

V4 Understanding Networking 1 - full quality preview · Video Tutorial V4: The OSI Layers: The FedEx Analogy · Networking training on DVD

This course builds on the basic packet, frame and IP networking concepts of Course V3, Fundamentals of Datacom and Networking, to put in place a solid understanding of protocol stacks, the OSI model and layers and IP addressing including address classes, static vs. dynamic public vs. private and network address translation.

In Part 3, we move to the next higher level of knowledge, understanding packet networks and bandwidth on demand services from telecommunication service providers. After understanding the core concepts, including virtual circuits, we use the grand-daddy of packet services, X.25 to explain jargon: connection-oriented vs. connectionless and reliable vs. unreliable packet networks.
Then we progress through technologies: Frame Relay, ATM and finish with MPLS. We'll trace the flow of TCP and IP packets from server to client across Frame Relay, then see how the same TCP/IP works over MPLS.

IP over MPLS will be the replacement for all services including ISDN, Frame Relay, T1s, native ATM. This is the reason why understanding the OSI layers, TCP/IP over MPLS, and how a protocol stack works is career-enhancing knowledge.

Part 1 Protocol Stacks and the OSI 7-Layer Reference Model
  • 1.03 Protocols and Standards
  • 1.05 ISO OSI Reference Model
  • 1.07 OSI 7-Layer Model
  • 1.09 Protocol Stacks
  • 1.11 Protocol Stack in Operation
Part 2 IP
  • 2.03 IP Address Classes
  • 2.05 Dynamic IP Addresses
  • 2.07 IP Addresses for Private Networks
  • 2.09 Network Address Translation
Part 3 WANs – Bandwidth On Demand: Packet Network Services
  • 3.03 Statistical TDM
  • 3.05 Bandwidth On Demand Service Concepts
  • 3.07 Virtual Circuit Technologies
  • 3.09 X.25 and Jargon
  • 3.11 Frame Relay
  • 3.13 TCP/IP over Frame Relay
  • 3.15 Frame Relay Performance: CIR and BIR
  • 3.17 ATM: Capacity Management
  • 3.19 MPLS
  • 3.21 TCP/IP Over MPLS

Course V5: Understanding Networking 2

Video Icon The Internet - ISPs - The Web - IP Security
Viruses - Firewalls - Encryption - IPsec - VPNs
Length 151 minutes (2 hours 31 minutes).
Available 54-page student manual.
Produced 2006.

V5 Understanding Networking 2 - full quality preview · Video Tutorial V5: VPNs · Networking and security training on DVD

In this course, we discuss the Internet and IP Security.

We will start at the very beginning of the story, explaining where the Internet comes from and all of the fundamental principles of operation. We'll look at a few details and improvements for example: the Domain Name System, HTML, HTTP and  MIME, that all form “the Web”. We'll go over how someone can connect to the Internet from a residence and/or from a business or organization.

In the second part, we will follow with a reasonably comprehensive coverage of IP security. We'll start with an explanation of potential risk areas, vulnerabilities and  security measures. Then we'll discuss several areas: computer security, malicious software such as viruses and Trojan Horses, and the measures used to protect users against these risks; firewalls and network security, authentication, public and private key encryption, IPsec and VPNs.
This multimedia DVD - provides over 2 1/2 hours of  information that gives a real understanding of the Internet, how it works and  the current issues. It includes practical knowledge of computer security, network security and firewalls, viruses, information security, exploits, IPsec and VPNs.

Part 1 Understanding The Internet
  • 1.03 Internet History
  • 1.05 Internet Basics
  • 1.07 TCP and UDP
  • 1.09 Internet Service Provides
  • 1.11 Commonly Used Internet Protocols
  • 1.13 Domain Name System
  • 1.15 MIME and Base-64 Encoding
  • 1.17 World Wide Web
  • 1.19 HTML, HTTP and HTTPS
  • 1.21 Accessing the Internet: Home Connections
  • 1.23 Accessing the Internet: Organization Connections
Part 2 IP Security
  • 2.03 Risk, Measures and Policy
  • 2.05 Viruses
  • 2.07 Trojan Horses, Denial of Service Attacks, Spyware and Exploits
  • 2.09 Network Segmentation and Perimeters
  • 2.11 Packet Filtering
  • 2.13 Firewall Proxies
  • 2.15 Stateful Packet Inspection
  • 2.17 Encryption
  • 2.19 Authentication
  • 2.21 IPsec
  • 2.23 Customer-Premise-Based VPN
  • 2.25 Carrier VPNs

Course V6: Understanding Wireless 1

Video Icon Wireless Fundamentals - Cellular: CDMA, TDMA, GSM, GPRS
3G: UMTS, CDMA2000, 1X, 1XEV-DO - Wireless Web
Length 134 minutes (2 hours 14 minutes).
Available 134-page student manual.
Produced 2003.

V6 Understanding Wireless 1 - full quality preview · Video Tutorial V6: Cellular · Wireless training on DVD

Understanding Wireless 1 begins with the basic concepts of radio, discussing "analog radio" and "digital radio". Next it follows with the fundamental knowledge of the networks used for mobile communications: mobility, cells, hand offs, and base stations.
With this knowledge in place, we then explain the types of first and second generation technology: AMPS, CDMA, TDMA, and GSM, and discuss how each one functions, their strengths and weaknesses and precisely how they relate to each other.
In Part 3, we cover 3G, data over cellular, and understand the differences between CDMA, GPRS, or UMTS, cmda2000, Wideband, 1X, 3X and 1XEV-DO. We discuss the throughput expected (in bits/second) and go over which carriers are using which technologies. We will conclude part 3 with  i-mode, wireless email, SMS, web surfing, WAP and XML applications.

The Understanding Wireless 1 video provides learners with a full understanding of exactly how cellular networks operate, the main technologies used, wireless applications, the competitors championing different systems.

Part 1 General Principles
  • 1.03 Wireless
  • 1.05 Analog Radio
  • 1.07 Digital Radio: Keying
  • 1.09 Limitations and Impairments
Part 2 Cellular
  • 2.03 Mobile Communications
  • 2.05 Cellular Standards
  • 2.07 2G, 2.5G, 3G Migration
  • 2.09 Cellular Principles
  • 2.11 1G: Analog
  • 2.13 2G: Digital
  • 2.15 Digital Cellular: Voice
  • 2.17 2G: TDMA (IS-136)
  • 2.19 2G: GSM
  • 2.21 GSM System Architecture
  • 2.23 2G: CDMA (IS-95, cdmaOne)
  • 2.25 CDMA: Coding
  • 2.27 CDMA: Spread Spectrum
  • 2.29 CDMA Particularities
  • 2.31 CDMA System Architecture
Part 3 3G and Data over Cellular
  • 3.03 Modems over 1G
  • 3.05 CDPD: Packets over 1G
  • 3.07 Data over 2G Cellular
  • 3.09 Data over TDMA/GSM
  • 3.11 GPRS: 2.5G
  • 3.13 Data over CDMA
  • 3.15 3G
  • 3.17 IMT-MC: cdma2000
  • 3.19 1X, 3X and 1xEV-DO
  • 3.21 IMT-DS: Wideband CDMA
  • 3.23 Throughput Comparisons
  • 3.25 Service Providers
Part 4 Applications and Delivery
  • 4.03 SMS and i-mode
  • 4.05 Wireless E-mail
  • 4.07 Device Evolution
  • 4.09 Delivering Web Content
  • 4.11 WAP
  • 4.13 XML

Course V8: Understanding Voice over IP 1

Video Icon Components - Standards - Architectures
Length 134 minutes (2 hours 14 minutes).
Available 60-page student manual.
Produced 2007.

V8 Understanding Voice over IP 1 - full quality preview · Video Tutorial V8: Softswitches and Visit to a CO switch · VoIP training courses on DVD

Understanding Voice over IP is a video course with high quality design made for those wanting to understand and get themselves up to speed on VoIP technologies, jargon and buzzwords, mainstream solutions, and most importantly, the fundamental ideas and concepts underlying VoIP. It is designed independent of any specific vendor's viewpoint…containing knowledge you won't find speaking with salespeople or reading trade magazines.
Featuring detailed graphics, extensive text notes, bullets, and our often humorous and engaging instructor Eric Coll, M.Eng., P.Eng., Understanding Wireless 1 training courses will provide you with the solid foundation necessary to intelligently discuss, evaluate, compare, and understand Voice over IP technologies, its products and implementations.

We begin by discussing VoIP; the Big Picture. We cover everything from communicating through your computer via the Internet, to VoIP Carriers, VoIP WANS, and PBX replacement. We will introduce the many different concepts and ideas, and the hardware and software involved with VoIP.
We'll go over regulatory issues, the positions of different carrier services, future issues to plan for, and we'll give you some valuable strategic insights that can benefit immediately in planning for or managing the many aspects of Voice over IP.

This course explains the big-picture view of VoIP, discussing each component of the VoIP system. It includes softswitches and gateways, RTP and SIP standards that are used, and the many different ways of implementing Voice over IP .

Chapter 1 VoIP Systems, Components, Standards, Jargon and Buzzwords
  • 1.03 The Big Picture
  • 1.05 Terminals
  • 1.07 Voice in IP Packets
  • 1.09 Soft Switches / SIP Servers / Call Managers
  • 1.11 Media Servers
  • 1.13 Gateways
  • 1.15 LANs and WANs
  • 1.17 Key VoIP Standards
  • 1.19 Where All of This is Headed: Broadband IP Dial Tone
Chapter 2 VoIP Architectures and Implementation Choices
  • 2.03 Computer-Computer VoIP over the Internet
  • 2.05 Skype and IM
  • 2.07 Computer to Phone e.g. SkypeOut (DS0 Interconnect to LEC)
  • 2.09 Phone to Phone over the Internet e.g. Vonage
  • 2.11 Managed IP Telephone Service (MIPT)
  • 2.13 IXCs and IP-based Backbones
  • 2.15 VoIP for Businesses and Organizations
  • 2.17 VoIP-Enabled PBX and Migration Options
  • 2.19 PBX Replacement
  • 2.21 Hosted PBXs
  • 2.23 IP Centrex
  • 2.25 Asterisk and Open-Source IP-PBX Software
  • 2.27 SO/HO IP Phone Features and Uses

Course V9: Understanding Voice over IP 2

Video Icon Voice Packetization - Voice Quality - Codecs, Jitter and Packet Loss
- Diff-Serv - Network QoS with MPLS
Length 119 minutes (1 hours 59 minutes).
Available 48-page student manual.
Produced 2007.

V9 Understanding Voice over IP 2 - full quality preview · Video Tutorial V9: QoS and Traffic Conditioning · VoIP training courses on DVD

In Understanding VoIP 2, we explain packetized voice and the voice quality.

The first part discusses the process of how voice packetization and codecs work. We will cover issues like packet loss and jitter that can have effects on the quality of the reconstruction of speech, jitter buffers and the role of RTP, and finish with an explanation of the "best practices" used for achieving voice quality.

The second section discusses network QoS: MPLS and Diff-Serv. We will cover MPLS and explain how providers use it to implement the right prioritization in Service Level Agreements. In addition, we'll cover 802.1P and the queuing methods.

This course gives learners an understanding of how exactly voice is packetized, the different factors that may affect sound quality, the different codecs that are used, QoS, MPLS, RTP and jitter buffers, Diff-Serv and Service Level Agreements.

Part 1 Voice Packetization, Codecs and Voice Quality
  • 1.03 Voice Packetization
  • 1.05 Measuring Voice Quality
  • 1.07 Factors Affecting Voice Quality
  • 1.09 Codecs: Voice Coding and Compression
  • 1.11 Delay
  • 1.13 Jitter
  • 1.15 RTP
  • 1.17 Protocol Stack: RTP, UDP, IP, MAC
  • 1.19 Packet Loss
  • 1.21 Tips for Maximizing Voice Quality
Part 2 QoS: Quality of Service in the IP World
  • 2.03 Virtual Circuit Technologies
  • 2.05 MPLS
  • 2.07 Differentiated Services (Diff-Serv)
  • 2.09 Meters, Markers, Shapers and Droppers
  • 2.11 Interworking Diff-Serv and MPLS
  • 2.13 802.1P
  • 2.15 Implementing QoS: Queuing Techniques

Course V10: Understanding Voice over IP 3

Video Icon SIP and IP Call Flow - Carrier Interconnect - Megaco
Length 116 minutes (1 hour 56 minutes).
Available 54-page student manual.
Produced 2007.

V10 Understanding Voice over IP 3 - full quality preview · Video Tutorial V10: SIP · VoIP training courses on DVD

In this course, we'll learn SIP and how the connections are made.

We will explain the SIP trapezoid, describe how it works, demystify the buzzwords and jargon such as location server or proxy server. We'll explain how SIP works with call managers and softswitches, and a step by step trace of an IP phone call will be established.

In part 2, we'll go over connecting to carriers by using traditional PRIs and DS0 PBX trunks, how Megaco connects to the story,  IP interconnect, integrated messaging, the co-existence with older legacy systems,  and more.

This course will set you up with solid working knowledge of both SIP and IP call flow. You will understand the options available for connecting VoIP systems with PSTN, LECs and IXCs.

Part 1 SIP and Call Flow in the IP World
  • 1.03 What SIP Is and What It Can Do
  • 1.05 Relationship to Other Protocols
  • 1.07 SIP URIs: “Telephone Numbers”
  • 1.09 Register: Update Your Location
  • 1.11 INVITE: “Dialing”
  • 1.13 Location Service: Finding the Far End
  • 1.15 The SIP Trapezoid
  • 1.17 SIP Message Example
  • 1.19 How SIP Relates to Softswitches and Call Managers
  • 1.21 SDP: Session Description Protocol
  • 1.23 SIP Glossary
Part 2 Carrier Interconnect
  • 2.03 Internet - PSTN Interconnect via DS0 (Vonage / SkypeOut)
  • 2.05 Internet - PSTN Interconnect via IP
  • 2.07 Session Border Controllers
  • 2.09 Carrier - Business Interconnect Using DS0 and SIP
  • 2.11 Interconnect using MEGACO
  • 2.13 Carrier - Business Interconnect Using IP and SIP
  • 2.15 Co-Existence with a Legacy PBX
  • 2.17 Integrating Integrated Messaging

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