High-Quality Online
Telecommunications Training Courses

Upgrade your knowledge – and your résumé – with high-quality telecom training courses by Teracom Training Institute plus optional TCO Certification from the Telecommunications Certification Organization.

Get the knowledge you need plus certification to prove it!

Based on Teracom's proven instructor-led training courses developed and refined over more than twenty years, Teracom online courses are top-notch, top-quality and right up to date with the topics and knowledge you need.

Ideal for:

  • Those new to the telecom business who need to get up to speed on telecommunications, data communications, broadband, IP, MPLS, wireless, networking, Voice over IP (VoIP) phone systems, SIP and Security
  • The non-engineering professional needing an overview and update on new technologies like IP, VoIP and MPLS
  • Anyone who wants to differentiate themselves from the rest of the crowd with an internationally-recognized certification when applying for a job in telecom or angling for a promotion


We're so confident of the quality of this training, it comes with a
30-day no-questions-asked money-back guarantee.

You have nothing to lose – and valuable knowledge
and certification to gain!

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Here's What Customers Like You are Saying

Lance Johnson ★★★★★
At this level of commitment, access and efficiency, you won't find a better, more in-depth and reputable telecom training and certification course of study. Happy Customer.

Joseph Bindus ★★★★★
Enjoyed the courses. Helped me get a new job.

Aaron Weiss ★★★★★
The Teracom training courses I took were much better than I had expected. The production of the training materials was high quality and edited well. The instructor spoke clearly, had appropriate teaching aids, and conveyed technical material in a way that was easy to understand. The instructor also injected the right amount of humor to keep me engaged. I would highly recommend Teracom for training.

Ian Palmer ★★★★★
All employees use Teracom as part of their onboarding. Great information!

Al Born ★★★★★
I have a staff of recruiters who specialize in recruiting telecom professionals. We found Teracom's training to be very helpful so they understood the telecom basics and could better qualify potential candidates.

Volker B ★★★★★
I have done three certifications with Teracom (CIPTS, CWA, CTNS). The content of all three was excellent... a perfect complement to my overall IT knowledge. I can now speak to engineers and technicians more on the same frequency and can provide better consultancy to my customers. I feel the courses are also priced fairly and are fun to watch and study.

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TCO Certification Packages are sets of Teracom courses plus TCO exams and certification at a discounted price.

Teracom's exclusive Unlimited Plan gives you unlimited repeats of courses and exams: guaranteed to pass, and refresh your knowledge anytime in the future. Our GSA Contract GS-02F-0053X for supplying this training to the US Government is your assurance of quality and value.

Get a telecommunications certification from the Telecommunications Certification Organization (TCO), a Certificate suitable for framing plus – another Teracom exclusive – a personalized Letter of Reference for your résumé detailing the knowledge your TCO Certification represents and inviting the recipient to contact Teracom for verification.

Buy with confidence!  30-day money-back guarantee.

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Join thousands of satisfied customers including the FBI Training Academy, US Marine Corps Communications School, US Army, Navy, Air Force and Coast Guard, CISA, DISA, DoJ NSD, NSA and CIA, IRS, FAA, DND, CRA, CRTC, RCMP, banks, power companies, police forces, manufacturers, government, local and regional telcos, broadband carriers, individuals, telecom planners and administrators, finance, tax and accounting personnel and many more from hundreds of companies.

Benefit from decades of knowledge, insight and experience distilled into clear lessons designed for non‑engineers, logically organized to build one concept on another... in plain English. Teracom's GSA Contract supplying this training to the US government reflects approved quality and value that you can depend on.

we provide training to at&t         we provide training to verizon         we provide training to Bell Canada         microsoft         we provide training to intel         we provide training to cisco         GSA contract holder - pre-approved pricing and quality - supplier to the US Government         cox cable        

Course Descriptions

Free previews: click a picture below to watch a full lesson, free!

Certified Telecommunications Network Specialist (CTNS) Courses

The CTNS Certification Package includes eight courses plus the TCO CTNS Certification Exam, Certificate and Personalized Letter of Reference.  Designed for non-engineers, these courses will give you the core knowledge needed in telecom today, plus a certificate to prove it! Unlimited repeats of exams and courses.  30-day no-questions-asked 100% money-back guarantee.

2241 Introduction to Broadband Converged IP Telecom
2206 Wireless Telecommunications
2221 Fundamentals of Voice over IP
2201 The PSTN
2212 OSI Layers and Protocol Stacks
2211 LANs, VLANs, Wireless and Optical Ethernet
2213 IP Addresses, Packets and Routers
2214 MPLS and Carrier Networks

Download the printable PDF brochure for full details

Purchase courses in this set of eight as the CTNS Certification Package, or individual courses as best meets your needs.

The Certified Telecommunications Subject Matter Expert CTSME Certification Package
includes all of these courses at a substantial discount... plus 5 TCO certifications, all with unlimited repeats.

Upgrade your training with the CTNS Study Guide!
406 pages packed with detailed notes and color diagrams, available in softcover, eBook and hardcover.

Course 2241
Introduction to Broadband Converged IP Telecom

Convergence • Broadband • Network Core and Edge • Protocols • Last Mile Copper, Fiber and Wireless • Residential, Business and Wholesale Services • Network Equipment • Carrier Connections

Specifically designed for non-engineers, Introduction to Broadband Converged IP Telecom is a high-level wide-ranging introduction to the world of modern IP telecommunications.

This course is based on the first chapter of Teracom's famous instructor-led BOOT CAMP, getting a full week of training started with an introduction to all of the different aspects of the modern converged IP telecom network.

For non-engineers, it's a first pass through the topics, starting at the beginning, explaining the fundamental ideas, jargon, equipment and technologies, the services that are sold, the players, where the money is, and how it all fits together.

In subsequent courses, we'll take another pass and drill deeper into key areas like Wireless, VoIP, PSTN, Ethernet, IP and MPLS.

Course Lessons
1. Course Introduction (watch free)
2. Convergence
3. Broadband
4. Model of Today's Converged Telecom Network
5. The Network Core
6. Network Protocols: Ethernet, IP and MPLS
7. Network Access: Last Mile Copper, Fiber and Wireless (watch free)
8. Anatomy of a Service
9. Services: Residential, Business and Wholesale
10. Network Equipment
11. Carrier Network Interconnect

Based on Teracom's famous Course 101, tuned and refined over the course of more than 20 years of instructor-led training, we'll cut through the jargon to demystify modern IP telecommunications, explaining the jargon and buzzwords, the underlying ideas, and how it all works together... in plain English.

Introduction to Broadband Converged IP Telecom is the first course in the CTNS Certification Package, providing a comprehensive introduction to modern IP telecommunications.

Specifically designed for non-engineering professionals, this course is a first pass through all of the major topics, explaining the fundamental ideas, jargon, equipment and technologies, the services that are sold, the players, where the money is, and how it all fits together.

On completion of this telecommunications course online, you will be able to (with open-book reference to the course or study guide):
  • Define convergence, and two ways that it might be achieved
  • Define bandwidth, explain what broadband means and how much "broad" might be
  • Identify all of the main aspects of the modern broadband converged IP network, including the parts of the physical network, the three types of services, the equipment and players
  • Describe the network core, its purpose, performance requirements and how they are implemented
  • Identify the three primary network protocols: Ethernet, IP and MPLS, and what each does
  • Explain how MAC Frames and IP Packets go together
  • Identify the essential purpose of an IP address
  • Explain the essential advantage of MPLS over IP for routing
  • Define the three main technology areas for network access
  • List the most popular technologies in each
  • Describe the three components of a network service
  • Define the three main groupings of telecom services based on customer type
  • Describe at least four different meanings of the term VPN
  • Differentiate between streaming video vs. video from your ISP, and the essential difference between them
  • Explain in general what an MPLS VPN is and who uses it
  • Identify the key difference between MPLS VPN services and SD-WAN services
  • Explain what SIP trunking is and what legacy service it replaces
  • List at least four types of wholesale telecommunications services
  • Explain what a Data Center is
  • Explain the essential function of a router
  • Describe what a Layer 2 switch is used for, and how Layer 2 switches relate to routers
  • Define multiplexing
  • Identify three technologies that use Frequency-Division Multiplexing
  • Identify the name for FDM in the fiber optic world
  • Differentiate between FDM and Time-Division Multiplexing
  • Describe what a gateway is and the two functions it performs

This is quite a range of knowledge, and can appear daunting, especially if you are new to telecom. Keep in mind that this course is the introduction, the first pass through all of these topics.

No-one is expecting anyone to be an instant expert. If you are just starting in telecom, you would need to refer to the course or study guide open-book to do the above.

In subsequent courses, we take a second and sometimes third pass through the topics and drill deeper to more fully understand the concepts and technologies.

With this course, we're getting started identifying and understanding all of the aspects of modern broadband converged IP telecommunications.

Detailed Course Outline

1. Introduction
Course introduction and overview

2. Convergence
One network carrying all services: telephone, video and Internet. Channels vs. packets.

3. Broadband
Bandwidth, and how much "broad" might be

4. Introduction to Broadband Converged IP Telecom Model
Graphical model identifying all the main aspects of telecommunications and how they relate

5. The Network Core
High-capacity, high-availability connections between aggregation centers. Fiber rings.

6. Network Protocols: Ethernet, IP and MPLS
Ethernet moves packets point-to-point. IP address is the final destination. MPLS manages flows.

7. Network Access: The Last Mile:
Twisted pair, hybrid fiber-coax, Passive Optical Network, Optical Ethernet, cellular, satellite

8. Anatomy of a Service
Network access technology, network connection type and billing agreement

9. Services: Residential, Business and Wholesale
Comprehensive review of the main dollar-value services in each sector

10. Network Equipment
Layer 2 switches, IP routers, MPLS routers, FDM and TDM multiplexers, wavelength cross connects

11. Carrier Network Interconnect
Tariffed switched-access for calls involving a PSTN phone number; Internet Exchange transit and peering

Download the Course Brochure PDF for the full detailed description


Individual Course  
with unlimited repeats, Teracom Course Completion Certificate

Certified Telecommunications Network Specialist (CTNS) Certification Package
Eight courses including this one with unlimited repeats, TCO CTNS Certification and Letter of Reference

CTSME: Certified Telecommunications Subject Matter Expert certification package includes this course.

Shop with confidence! All choices come with a 100% Money-Back Guarantee: full refund within 30 days.   details

Course 2206 Wireless Telecommunications

Mobile Network Fundamentals • Cellular Principles • Digitized Voice over Radio • Mobile Internet • FDMA, TDMA, CDMA and OFDM • 4G LTE and OFDMA • 5G: New Spectrum, Ultra-Broadband and IoT • Wi-Fi 6 802.11ax • Communication Satellites

Wireless Telecommunications is a comprehensive up-to-date course on cellular plus Wi-Fi and satellites. Taking this course, you will develop a solid understanding of the fundamental principles of radio, mobility and cellular; network components and operation, digital radio, mobile phone calls and mobile Internet access;  and spectrum-sharing technology OFDM, and how it's used in LTE and 5G. In addition, you will get up to speed on the components, operation and latest standards for Wi-Fi, and the essentials of satellite communications.

Course Lessons
1. Introduction (watch free)
2. Mobile Network Components, Jargon and Operation
3. Cellular Principles
4. PSTN Phone Calls using the Phone App: Voice Minutes
5. Mobile Internet: Data Plan
6. Spectrum-Sharing: FDMA, TDMA, CDMA, OFDM
7. 4G LTE: Mobile Broadband
8. 5G New Radio: Enhanced Mobile Broadband, IoT Communications
9. Wi-Fi: 802.11 Wireless LANs (watch free)
10. Communication Satellites

We'll cut through the jargon to demystify wireless, explaining the fundamentals of cellular and mobility, the buzzwords, the network, technologies and generations, the underlying ideas, and how it all works together... in plain English.

You'll gain a solid understanding of the key principles of wireless and mobile networks:
  • Radio fundamentals
  • Mobile network components and operation
  • Coverage, capacity and mobility
  • Why cellular radio systems are used
  • Registration and handoffs
  • Digitized voice over radio for PSTN phone calls
  • Mobile Internet: "Data Plan"
  • Cellular technologies: FDMA, TDMA, CDMA, OFDM
  • 4G LTE and OFDMA
  • 5G: new spectrum, more b/s, ultra-broadband and IoT
  • Wi-Fi: 802.11 wireless LANs, Wi-Fi 6 / 802.11ax, Wi-Fi security
  • GEO and LEO satellite communications

We begin with basic concepts and terminology involved in mobile networks, including base stations and transceivers, mobile switches and backhaul, handoffs, cellular radio concepts and digital radio concepts.

You'll understand how a phone call connects from a cell phone to a landline, and the different methods of allowing other devices to use a smartphone's mobile Internet connection.

Without bogging down on details, we'll review spectrum-sharing technologies: FDMA for first generation; 2G GSM/TDMA, 3G CDMA and 4G and 5G OFDM.

We'll take some time to understand how modems represent bits on subcarriers, and how OFDMA is used in 4G and 5G to dynamically assign subcarrier(s) to users.

This is followed with Wi-Fi, or more precisely, 802.11 wireless LANs: the system components, frequency bands, bitrates and coverage for all of the versions up to Wi-Fi 6 which is 802.11ax, the first Wi-Fi to implement full-duplex communications with multiple simultaneous devices using OFDMA and a theoretical 9.6 Gb/s.  We'll also cover WPA-2 and WPA-3 security.

The course is completed with communications satellites, in Geosynchronous Earth Orbit and Low Earth Orbit, including Iridium Next and Starlink.

Detailed Course Outline

1. Introduction Course introduction and overview. Basic radio principles, analog and digital over radio.

2. Mobile Network Components, Jargon and Operation Handset, base station, airlink, handoffs, backhaul and connection to wireline systems

3. Cellular Principles The requirements of coverage, capacity and mobility. Cellular for coverage, spectrum sharing for capacity, and handoffs for mobility.

4. PSTN Calls Using the Native Phone App: "Voice Minutes" Components and operation involved in a phone call: microphone, codec, RF modem, antenna, backhaul and connection to other carriers at the Toll Center building.

5. Mobile Internet: "Data Plan" Mobile Internet via a smartphone; using the RF modem and antenna as a tethered modem, mobile Wi-Fi hotspot.

6. Spectrum-Sharing: FDMA, TDMA, CDMA, OFDM Sorting out the generations and standards.

7. 4G LTE: Mobile Broadband Subcarriers, how LTE implements modems on subcarriers, and OFDMA for dynamic capacity sharing.

8. 5G NR: Enhanced Mobile Broadband, IoT Communications New spectrum and use cases: more b/s at conventional frequencies, ultra-broadband in millimeter-wave bands, and low bit rates for IoT devices.

9. Wi-Fi: 802.11 Wireless LANs Wi-Fi components and principles of operation, 802.11 standards, frequency bands and coverage, including Wi-Fi 6 802.11ax, implementing OFDMA with massive performance increase. Completed with WPA-2 and WPA-3 Wi-Fi security.

10. Communication Satellites Geosynchronous Earth Orbit and Low Earth Orbit, Iridium Next and Starlink.

Download the Course Brochure PDF for the full detailed description


Individual Course  
with unlimited repeats, Teracom Course Completion Certificate

Certified Telecommunications Network Specialist (CTNS) Certification Package
Eight courses including this one with unlimited repeats, TCO CTNS Certification and Letter of Reference

Certified Telecommunications Analyst (CTA) Certification Package
Sixteen courses including this one with unlimited repeats, TCO CTA Certification and Letter of Reference

CTSME: Certified Telecommunications Subject Matter Expert certification package includes this course.

Shop with confidence!
All choices come with a 100% Money-Back Guarantee: full refund within 30 days.

Course 2221 Fundamentals of Voice over IP

Jargon & Buzzwords • VoIP Phone System Components and Operation • Voice Packetization • LANs and WANs • VoIP Phones: MAC Address, DHCP, IP, UDP, RTP, QoS • SIP, Softswitches & SIP Trunking • Cloud • The Future

Fundamentals of Voice over IP is a complete introduction to everything Voice over IP. You'll learn the fundamental ideas and principles of a VoIP telephone system, VoIP, SIP & all the other jargon - what it actually means and how it all works together.

At each step, we'll also cover supporting and related technologies like Ethernet MAC frames and codecs and video over IP.

Course Lessons
1. The Big Picture (watch free)
2. Terminals
3. Voice in Packets (watch free)
4. SIP and Soft Switches / SIP Servers / Call Managers
5. Media Servers: Video Servers
6. Gateways
7. LANs and WANs
8. Key VoIP Standards
9. Where All of This is Headed: IP Dial Tone

This course can be taken by anyone who needs to get up to speed on all things VoIP. You will gain career-enhancing knowledge of the components and operation of Voice over IP systems, and learn what all of the jargon and buzzwords mean.

It also serves as a first pass through topics that are covered in greater detail in subsequent lessons.

The objective of this course is to put in place a solid, structured base of knowledge in the technology and implementation of communicating thoughts from one person's brain to another via a telephone conversation carried in IP packets.

In particular, on completion of this course, you will be able to explain:

  • How a VoIP phone is more of a computer than a phone, and its computer functions
  • How a VoIP phone digitizes the speech coming into a microphone
  • The idea of adding a time stamp to a 20 ms segment of digitized speech 
  • How UDP adds a port number and error check
  • IP adds the called party's telephone's IP address and creates an IP packet
  • This is carried in a MAC frame over a physical circuit to the next router
  • Reconstructing the speech at the far end
  • What happens when packets with voice get delayed or lost
  • That SIP is the protocol for exchanging little text messages to start a phone call
  • That each end has a SIP server, either running locally, at a remote site or in the cloud
  • The calling party asks their SIP server to ask the called party's SIP server if the called party wants to take a call
  • If the called party says "yes", the two phones thereafter exchange Voice in IP Packets directly, and the SIP servers drop out of the story.
  • That video over IP is where the real money is
  • What a video server is made of, where it is located, and what it does
  • What a gateway is and why it is needed
  • What technologies used in old telephone systems have to be converted
  • Wiring VoIP phones to Layer 2 aggregation and PoE switches in wiring closets
  • Connecting Layer 2 switches to a router to connect to a carrier with Optical Ethernet
  • VoIP carrier services, including SIP trunking, MPLS VPN, Internet SD-WAN
  • What a Service Level Agreement is
  • The key standards related to VoIP from RTP and G.711 to Optical Ethernet
  • How basic telecom service will be Broadband IP Dial Tone in the future, as the Internet and the telephone network become the same thing.
  • How telephone service becomes a helper application called SIP everyone uses
  • How the web is already a helper application called DNS everyone uses
  • A voice call is just another kind of traffic on the IP-PSTN

Detailed Course Outline

1. The Big Picture
Course introduction and overview.

2. VoIP Phones and Terminals
Components of a VoIP phone, speech packetization, codecs, SIP, voice prioritization, LTE and 5G

3. Voice in IP Packets
Speech from lips to ear through digitization, RTP, UDP, IP, MAC and copper, fiber or wireless

4. SIP and Softswitches - SIP Servers / Call Managers
Video visit to a CO to explain "softswitch", SIP running on softswitch, PBX, Hosted PBX, cloud

5. Media Servers
Video and in the future, VR is where the money is. Video over IP, servers, Netflix appliance, DRM

6. Gateways
Protocol converters: old channelized DS0 systems ↔ Voice over IP, media and signaling conversion

7. Connecting: LAN and WAN
Layer 2 switches and PoE on Cat 6 in-building, Optical Ethernet to carrier services: VPN, SIP Trunking

8. Key VoIP Standards
A roundup of standard protocols: SIP and SDP, RTP, UDP vs. TCP, IP, 802, G.711, Cat 6, OE

9. Where All of This is Headed: IP Dial Tone
A peek at the Future, when the Internet and the telephone network are the same thing.

Download the Course Brochure PDF for the full detailed description


Individual Course  
with unlimited repeats, Teracom Course Completion Certificate

Certified Telecommunications Network Specialist (CTNS) Certification Package
Eight courses including this one with unlimited repeats, TCO CTNS Certification and Letter of Reference

Certified VoIP Analyst (CVA) Certification Package
Six courses including this one with unlimited repeats, TCO CVA Certification and Letter of Reference

CTNS + CVA Combo Discount Special
Get CTNS and CVA Certification Packages together at a discount

CTSME: Certified Telecommunications Subject Matter Expert certification package includes this course.

Shop with confidence!
All choices come with a money-back guarantee: full refund within 30 days.

Course 2201 The PSTN

Loops and Trunks • POTS • Circuit-Switching • LECs, CLECs and IXCs • Analog • Voiceband • DTMF • SS7

One cornerstone of a full, rounded base of knowledge of telecommunications is the structure and operation of the Public Switched Telephone Network, built over the past 135 years, still in operation in every country on earth – knowledge necessary for connecting the PSTN to, and steadily replacing the PSTN with IP telecom technologies.

In this course, you'll build a solid understanding of the fundamentals of the telephone system: Customer Premise and Central Office, loops, trunks, remotes, circuit switching and how a telephone call is connected end-to-end.  We'll cover LECs, CLECs and IXCs, sound, analog and the voiceband, twisted pair, DTMF and SS7.  Updated for the 2020s.

Course Lessons
1. Introduction (watch free)
2. History of Telecommunications (USA and Canada)
3. The Public Switched Telephone Network (PSTN)
4. Analog Circuits and Sound
5. The Voiceband (watch free)
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 famous Course 101, tuned and refined over the course of more than 20 years of instructor-led training, we'll cut through the jargon to demystify telephony and the telephone system, explaining the jargon and buzzwords, the underlying ideas, and how it all works together… in plain English.

Featuring many photos of actual equipment both inside a Central Office and in the outside plant, this multimedia course is an excellent way to get up to speed on traditional telephony.

In this online telecommunications course, we begin with a history lesson, understanding how and why telephone networks and the companies that provide them are organized into local access and inter-city transmission, or as we will see, Local Exchange Carriers (LECs) and Inter-Exchange Carriers (IXCs).

Then we will establish a basic model for the PSTN and understand its main components: Customer Premise, Central Office, loop, trunk, outside plant, circuit switching, attenuation, loop length, remotes, and why knowledge of the characteristics of the loop remains essential knowledge even though we are moving to Voice over IP.

Next, we'll cover aspects of telephony and Plain Ordinary Telephone Service, including analog, the voiceband, twisted pair, supervision and signaling including DTMF. The course is completed with an overview of SS7, the control system for the telephone network in the US and Canada.

On completion of this telecommunications course online, you will be able to draw a model of the Public Switched Telephone Network, explain its core-and-edge architecture, identify components and technologies, along with the big picture, including:
  • Why telecom networks are divided into local access wiring and long-distance transmission
  • The founding, breakup and re-emergence of AT&T in the US; TELUS and Bell in Canada
  • A basic model for the PSTN and its main components
  • Loops, why they are called loops and why there is a maximum loop length
  • The outside plant
  • Circuit-switching
  • Central Office and Customer Premise
  • How and why remotes are used; fiber to the neighborhood
  • Plain Ordinary Telephone Service
  • What analog is, and how it relates to copper wires, electricity, circuits and sound
  • How microphones and speakers work
  • The human hearing range
  • Whether trees falling in the forest if no-one is there to hear them cause a sound
  • The voiceband
  • Why and how the telephone system can limit frequencies to the voiceband
  • Why two wires are used
  • Why they are twisted together (twisted pair)
  • Tip and ring, -48 volts
  • Supervision, dial tone, ringing, lightning protection
  • Dial-up
  • Touch-tone and DTMF
  • Basics of SS7
  • Call routing between carriers using SS7

Detailed Course Outline

1. Introduction Course introduction and overview

2. History of Telecommunications Local phone companies, long distance; US: Bell System, breakup, LECs and IXCs; Canada

3. The Public Switched Telephone Network (PSTN) Loops and trunks, CO, customer premise, circuit-switching, outside plant, loop length, remotes

4. Analog Circuits and Sound What analog means, microphones and speakers, copper wires and electricity, trees falling in the forest

5. The Voiceband Reproducing thoughts vs. reproducing sound, frequency range, filters, limitations

6. Plain Ordinary Telephone Service (POTS) Twisted pair, analogs on two wires, dial tone, ringing, supervision, lightning protection

7. Signaling: Pulse Dialing and DTMF Dial-up, make-or-break signaling, touch-tone, DTMF, in-band signaling

8. Signaling System 7 (SS7) Control system for the PSTN, SCPs and SSPs, call routing between carriers

Download the Course Brochure PDF for the full detailed description


Individual Course  
with unlimited repeats, Teracom Course Completion Certificate

Certified Telecommunications Network Specialist (CTNS) Certification Package
Eight courses including this one with unlimited repeats, TCO CTNS Certification and Letter of Reference

Certified Telecommunications Analyst (CTA) Certification Package
Sixteen courses including this one with unlimited repeats, TCO CTA Certification and Letter of Reference

CTSME: Certified Telecommunications Subject Matter Expert certification package includes this course.

Shop with confidence! All choices come with a 100% Money-Back Guarantee: full refund within 30 days.   details

Course 2212 The OSI Layers and Protocol Stacks

Protocols & Standards • OSI Model • Layers • Protocol Stacks • FedEx Analogy

This course begins the "networking courses" in the Certified Telecommunications Network Specialist (CTNS) certification package.

The OSI 7-Layer Reference Model is used to sort out the many functions that need to be performed, to be able to discuss separate issues separately. The functions are organized into groups called layers, which are stacked one on top of the other. This allows us to relate different pieces of the puzzle in subsequent lessons.

The course starts with the big picture, then one lesson for each layer, then protocol stacks.

Course Lessons
1. Introduction (watch free)
2. Open Systems
3. Protocols and Standards (watch free)
4. ISO OSI 7-Layer Reference Model
5. The Physical Layer
6. Data Link Layer
7. Network Layer
8. Transport Layer
9. Session Layer
10. Presentation Layer
11. Application Layer
12. Protocol Stacks
13. Protocol Headers
14. Standards Organizations

Based on Teracom's famous Course 101, tuned and refined over the course of more than 25 years of instructor-led training. You'll learn what a layer is, what the layers are, what each one does and examples of where things like TCP fit into the model ...and how it all works together… in plain English.

This course establishes a framework for all of the discussions in subsequent lessons and courses: the OSI 7-Layer Reference Model, which identifies and divides the functions to be performed into groups called layers.

You'll learn what a layer is, the purpose of each layer, see examples of protocols used to implement each layer, and learn how a protocol stack really works with the famous "FedEx Analogy" presented as an embedded video by our top instructor, Eric Coll.

On completion of this course, you will be able to explain:

  • The concept of an open system and its advantages
  • What a protocol is, and what a standard is
  • The OSI Model and its purpose
  • What a Layer is
  • The seven layers of the OSI model
  • The name of each layer
  • The functions each layer is responsible for
  • Examples of actual protocols for each layer
  • What a protocol stack is and how it operates
  • Examples of standards organizations that publish protocols

Detailed Course Outline

1. Introduction Course introduction and overview

2. Open Systems Open systems vs. proprietary systems.

3. Protocols and Standards Illustrated overview of all the functions required for communications, and protocols vs. standards

4. ISO OSI 7-Layer Reference Model Top-level overview and introduction to Layers

5. The Physical Layer Fiber, Twisted Pair, Cable and Wireless

6. Data Link Layer LANs and MAC Addresses

7. Network Layer IP, MPLS, Packets and Routers

8. Transport Layer Reliability, Connections, Ports and Sockets

9. Session Layer SIP, POP and HTTP

10. Presentation Layer ASCII, MIME, Compression, Encryption, Codecs

11. Application Layer SMTP, HTML and English

12. Protocol Stacks How a protocol stack and peer protocols actually work.  Tracing the flow through the stack with the FedEx Analogy

13. Protocol Headers Babushka Dolls

14. Standards Organizations ISO, IETF, ITU

Download the Course Brochure PDF for the full detailed description

Build structured, broad knowledge of networks - understanding that lasts a lifetime. Stand out from the crowd!


Individual Course  
with unlimited repeats, Teracom Course Completion Certificate

Certified Telecommunications Network Specialist (CTNS) Certification Package
Eight courses including this one with unlimited repeats, TCO CTNS Certification and Letter of Reference

Certified Telecommunications Analyst (CTA) Certification Package
Sixteen courses including this one with unlimited repeats, TCO CTA Certification and Letter of Reference

CTSME: Certified Telecommunications Subject Matter Expert certification package includes this course.

Certified IP Telecom Network Specialist (CIPTS) Certification Package
Four courses including this one with unlimited repeats, TCO CIPTS Certification and Letter of Reference

Shop with confidence!
All choices come with a 100% Money-Back Guarantee: full refund within 30 days.

Course 2211 LANs, VLANs, Wireless and Optical Ethernet

MAC Addresses • MAC Frames • Layer 2 Switches • VLANs • Ethernet on Copper • 1000BASE-T • Power over Ethernet • Cable Categories • Office Wiring Plan • Wireless Ethernet (Wi-Fi) • Optical Ethernet • Ethernet in the Core, MANs and PONs • Fiber Types • SFP Transceivers • Field Installation

This course is all about Ethernet: the fundamentals, equipment and implementations, including twisted-pair copper cables, wireless and optical, in‑building, in the network core, in MANs and PONs.

Course Lessons
1. Introduction (watch free)
2. Broadcast Domains, MAC Addresses and MAC Frames
3. LAN Switches a.k.a. Layer 2 Switches
4. VLANs
5. 802 Physical Standards: 802.3 Twisted Pair and 802.11 Wi-Fi
6. Twisted-Pair LAN Cables, Categories, Wiring Plan and Switch Hierarchy (watch free)
7. new Optical Ethernet and Fiber Links

Based on Teracom's famous Course 101, tuned and refined over the course of more than 25 years and counting of instructor-led training.

We'll cut through the jargon to demystify Ethernet, MAC addresses, LANs and VLANs, Ethernet on copper wires, Ethernet over the Ether (Wi-Fi) and Ethernet on fiber: Optical Ethernet.

You'll understand the jargon and buzzwords, the underlying ideas, and how it all works together to form the physical links of the modern broadband converged IP telecommunications network.

… in plain English.

This course is all about Ethernet: the fundamentals, equipment and implementations including twisted-pair copper cables, wireless and fiber, in-building, in the network core, MANs and PONs.

Ethernet implements the equivalent of pipe physically connecting two devices. IP and MPLS are used to move packets from one pipe to another. They are covered in other courses.

Ethernet and its MAC frames has fulfilled one of the Holy Grails of telecom, packaging everything the same way on all kind of links: copper wire, fiber and wireless - in the core of the network, in the access network, and in the customer premise. Standardizing on MAC frames across the board makes interworking simpler, more reliable and cheaper to implement.  One can only stand back in awe and admire.

We'll begin with the fundamental idea of a broadcast domain, first implemented with a bus cable.

We'll understand LAN interfaces, and how each interface has a hard-coded MAC addresses, and how the address field in a MAC frame is used to indicate for whom a frame is intended, since all stations in a broadcast domain receive it.

We'll then understand how the bus is now inside a box called an Ethernet switch, LAN switch or Layer 2 switch, how the switch learns the MAC address of each station, and how the LAN switch forwards MAC frames to one or more stations.

Then we'll go over the important idea of VLANs, which are broadcast domains defined in software, and how VLANs can be used to segregate traffic by device type and by work area at the enterprise level, and segregate traffic by customer at the carrier level.

You'll learn about the many standards for implementing Ethernet, 802.3 from the original 10BASE-5 to 1000BASE-T on Categories of twisted-pair cables, 802.11 wireless LANs and Wi-Fi certification.

We'll finish with a compressive lesson on Optical Ethernet: Ethernet on fiber, which is the basis of today's telecom network.

You'll learn how bits are represented on fiber, how fiber cables are installed underground, and how fiber splicing is used to connect bulk fiber to equipment.

We'll review Optical Ethernet standards from 1 Gb/s to 100 Gb/s.

On completion of this course, you will be able to explain:
  • The idea of a broadcast domain.
  • The idea of a MAC addresses to identify a LAN interface on a station in a broadcast domain.
  • What MAC frames are, and what purpose they serve.
  • What a LAN switch is, and what it does.
  • How VLANs can be used to segregate devices into different broadcast domains.
  • The IEEE 802 series of standards: The 802.3 standard and communicating MAC frames at 10 Mb/s on coaxial cables to Gigabit Ethernet on copper and fiber.
  • What the code 1000BASE-T means.
  • MAC frames over the Ether, a.k.a. Wi-Fi, the 2.4 and 5 GHz unlicensed bands, and the fundamentals of how the bits in MAC frames are communicated using radio carrier frequencies.
  • Wiring Ethernet to the work area with Cat 5, Cat 5e and Cat 6 twisted-pair copper-wire cables. Wiring closets and Layer 2 aggregation switches.
  • What Optical Ethernet is, and how it is the building block of telecom networks, including Metropolitan Area Networks (MANs), carrier MPLS networks, and Passive Optical Networks (PONs) for fiber to the home. 
  • The fundamentals of how the bits in MAC frames are communicated using light guided in glass tubes.
  • How fiber cables are deployed and connected to equipment at each end.
  • What designations like 100GBASE-ER4 mean.

Detailed Course Outline

1. Course Introduction

2. Broadcast Domains, MAC Addresses and MAC Frames
The fundamental idea of devices connected together in a broadcast domain, and how stations communicate using MAC addresses

3. LAN Switches a.k.a. Layer 2 Switches
How LAN switches are at the center of practical implementation of connecting stations, and how they forward frames between stations in a broadcast domain.

4. VLANs
Defining broadcast domains in software to segregate traffic. Used to separate customer traffic on carrier MANs, and used in-building as a basic network security measure.

5. 802 Physical Standards: 802.3 Twisted Pair and 802.11 Wi-Fi
Ethernet on copper wires, and standards like 1000BASE-T. Ethernet over the Ether, usually called Wi-Fi, and how MAC frames are communicated using radio carrier frequencies.

6. Twisted-Pair LAN Cables, Categories, Wiring Plan and Switch Hierarchy Wiring
Ethernet to the work area with Cat 5, Cat 5e and Cat 6 twisted-pair copper-wire cables, wiring closets and Layer 2 aggregation switches.

7. Optical Ethernet and Fiber Links
The fundamental idea of representing the 1s and 0s that make up a MAC frame using light carried in a glass tube, how fibers are actually installed and commissioned, and review the Optical Ethernet implementations in the 802.3 standard.

Download the Course Brochure PDF for the full detailed description


Individual Course  
with unlimited repeats, Teracom Course Completion Certificate

Certified Telecommunications Network Specialist (CTNS) Certification Package
Eight courses including this one with unlimited repeats, TCO CTNS Certification and Letter of Reference

Certified Telecommunications Analyst (CTA) Certification Package
Sixteen courses including this one with unlimited repeats, TCO CTA Certification and Letter of Reference

CTSME: Certified Telecommunications Subject Matter Expert certification package includes this course.

Certified IP Telecom Network Specialist (CIPTS) Certification Package
Four courses including this one with unlimited repeats, TCO CIPTS Certification and Letter of Reference

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Course 2213 IP Networks, Routers and Addresses

IP Addresses • Packets • Networks • Routers • Static and Dynamic Addresses • DHCP • Public and Private Addresses • NAT • IPv6

IP Networks, Routers and Addresses is a comprehensive course on IP networking fundamentals: IP packets, IP addressing and IP routers.

We'll see how routers implement the network with packet-switching, that is, relaying packets from one circuit to another, and how routers are a point of control for network security. We'll introduce the term Customer Edge (CE), and understand the basic structure and content of a routing table.

Then we'll cover the many aspects of IP addressing: IPv4 address classes, dotted decimal, static vs. dynamic addresses, DHCP, public vs. private addresses, Network Address Translation, and finish with an overview of IPv6.

Course Lessons
1. Introduction (watch free)
2. Review: Channelized Time-Division Multiplexing (TDM)
3. Statistical Time-Division Multiplexing: Bandwidth-on-Demand
4. Network: Bandwidth on Demand + Routing
5. Routers
6. IPv4 Addresses
7. DHCP
8. Public and Private IPv4 Addresses
9. Network Address Translation (watch free)
10. IPv6 Overview
11. IPv6 Address Allocations and Assignment

Based on Teracom's famous Course 101, tuned and refined over the course of 20 years of instructor-led training, we'll cut through the jargon to clearly explain IP and routers, packets and addresses, the underlying ideas, and how it all works together… in plain English.

This course could also be called "Layer 3", as it is all about Layer 3 of the OSI model: the network layer, and in particular, IP packet networks.

Packet networks embody two main ideas: bandwidth on demand and packet switching.

First, we'll recap channelized TDM and its limitations, then understand statistical TDM or bandwidth on demand.

Next, we'll understand how routers implement the network with packet switching, that is, relaying packets from one circuit to another, and how routers are a point of control for network security. We'll introduce the term Customer Edge (CE), and understand the basic structure and content of a routing table.

Then we'll cover the many aspects of IP addressing – needed to be able to do the packet switching: IPv4 address classes, dotted decimal notation, static vs. dynamic addresses, DHCP, public vs. private addresses, Network Address Translation, and finish with an overview of IPv6 and IPv6 address allocation and assignment.

On completion of this course, you will be able to explain:
  • What a packet is
  • What a router is
  • Overbooking and bandwidth on demand
  • Why and how it can be implemented
  • What a network is, what a private network is
  • How routers implement a network by connecting links
  • How routers move packets between broadcast domains
  • Basic network design and security: packet filtering
  • The basic structure and contents of a routing table
  • The Customer Edge
  • IPv4 address blocks: Class A, Class B and Class C
  • Dotted-decimal notation
  • Static addresses and dynamic addresses
  • DHCP and how and why it is used to assign both
  • Public addresses and private addresses
  • How, why and where each is used
  • NAT: Network Address Translation
  • IPv6
  • How IPv6 addresses are allocated to ISPs
  • How each residence gets 18 billion billion IPv6 addresses

Detailed Course Outline

1. Introduction Course introduction and overview

2. Review: Channelized Time-Division Multiplexing (TDM) Traditional TDM – and why it is inefficient

3. Statistical Time-Division Multiplexing: Bandwidth-on-Demand Overbooking and opportunistic capacity

4. Private Network: Bandwidth on Demand + Routing The simplest framework for understanding routers and bandwidth on demand

5. Routers Routers and routing tables. Packet forwarding and packet filtering. Customer Edge.

6. IPv4 Addresses Address classes and dotted-decimal notation.

7. DHCP Dynamic addresses and static addresses – and how both are assigned using DHCP

8. Public and Private IPv4 Addresses How to obtain public addresses, and why private addresses are used in many cases

9. Network Address Translation How a NAT glues private IPv4 addressing used in-building to public addressing used on the Internet

10. IPv6 Overview Introduction to IPv6, what's new, the improvements on IPv4 and the IPv6 packet format

11. IPv6 Address Allocations and Assignment Types of IPv6 addresses, registries and allocations to ISPs. How subnets are assigned to end-users

Download the Course Brochure PDF for the full detailed description

Understand the whole IP story, including routers, packets, addresses, DHCP, NAT and IPv6. What's not to like?


Individual Course  
with unlimited repeats, Teracom Course Completion Certificate

Certified Telecommunications Network Specialist (CTNS) Certification Package
Eight courses including this one with unlimited repeats, TCO CTNS Certification and Letter of Reference

Certified Telecommunications Analyst (CTA) Certification Package
Sixteen courses including this one with unlimited repeats, TCO CTA Certification and Letter of Reference

CTSME: Certified Telecommunications Subject Matter Expert certification package includes this course.

Certified IP Telecom Network Specialist (CIPTS) Certification Package
Four courses including this one with unlimited repeats, TCO CIPTS Certification and Letter of Reference

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Course 2214 MPLS and Carrier Networks

Carrier Packet Networks • Technologies • MPLS • MPLS VPNs • SLAs • CoS • Integration & Aggregation

MPLS and Carrier Networks is a comprehensive training course designed to build a solid understanding of carrier packet networks and services, the terminology, technologies, configuration, operation and most importantly, the underlying ideas… in plain English.

We'll cut through the buzzwords and marketing to demystify carrier packet networks and services, explaining Service Level Agreements, traffic profiles, virtual circuits, QoS, Class of Service, Differentiated Services, integration, convergence and aggregation, MPLS and other network technologies, and how they relate to TCP/IP, without bogging down on details.

Course Lessons
1. Introduction (watch free)
2. Carrier Packet Network Basics
3. Service Level Agreements
4. Virtual Circuits
5. QoS Requirement for Voice over IP
6. MPLS
7. TCP/IP over MPLS (watch free)
8. Differentiated Classes of Service using MPLS
9. Integration and Convergence using MPLS
10. Managing Aggregates of Traffic with MPLS Label Stacking
11. MPLS Services vs. Internet Service

Based on Teracom's famous Course 101, tuned and refined over the course of over 25 years of instructor-led training, you will gain career- and productivity-enhancing knowledge of the structure, components and operation of carrier packet networks and services, how they are implemented, packaged and marketed by carriers and how they are used by government, business… and other carriers.

MPLS and Carrier Networks is a comprehensive, up-to-date course on the networks companies like AT&T build and operate, how they are implemented, the services they offer, and how customers connect to the network.

This course can be taken by those who need just an introduction to carrier networks and MPLS, as well as by those who need to build a solid base on which to build project- or environment-specific knowledge.

In the previous course, we used a private network, i.e. dedicated point-to-point circuits connected with routers, as the simplest framework for understanding packets, bandwidth on demand, routers, and network addresses.

In this course, we will take the same idea and apply it again at the carrier network level: replacing the dedicated lines with bandwidth on demand service from a carrier between the customer locations.

We'll spend much of this course understanding a powerful traffic management tool called virtual circuits, how they are implemented with MPLS, and how MPLS can be used to provide differentiated services, aggregate traffic and implement convergence.

Without bogging down on details, we'll cut through buzzwords and marketing to demystify:
  • Carrier packet networks and services
  • Customer Edge (CE) and Provider Edge (PE)
  • Service Level Agreements
  • Traffic profiles
  • Virtual circuits
  • QoS, Class of Service and Differentiated Services
  • Integration, convergence and aggregation
  • MPLS and other network technologies
  • How this relates to TCP/IP
  • How MPLS is used for business customer VPNs
  • How MPLS is used for integrated access:
  • How all services are carried together on one circuit
  • How MPLS is used to prioritize and manage IP packets
  • "MPLS services" vs. the Internet

Detailed Course Outline

1. Introduction
Course introduction and overview

2. Carrier Packet Network Basics
Customer Edge, Provider Edge, Access and Network Core

3. Service Level Agreements
Contractual specification: Traffic Profile and Class of Service

4. Virtual Circuits
Traffic Classes and pre-determined routes

5. QoS Requirement for Voice over IP
How packetized voice works and what is needed

6. MPLS
MPLS components, LER, LSP, LSR jargon, basic operation

7. TCP/IP over MPLS
Tracing a file transfer through the equipment and protocols
Implementing Virtual Private LAN Service with MPLS

8. Differentiated Classes of Service using MPLS
Different transmission characteristics for different traffic

9. Integration and Convergence using MPLS
Saving money with Integrated Access: all traffic on one network technology

10. Managing Aggregates of Traffic with MPLS Label Stacking
Aggregating similar traffic to be managed as a single entity

11. MPLS Service vs. Internet SD-WAN Service
Understanding the key difference: guarantees or not. The Future.

Download the Course Brochure PDF for the full detailed description


Individual Course  
with unlimited repeats, Teracom Course Completion Certificate

Certified Telecommunications Network Specialist (CTNS) Certification Package
Eight courses including this one with unlimited repeats, TCO CTNS Certification and Letter of Reference

Certified Telecommunications Analyst (CTA) Certification Package
Sixteen courses including this one with unlimited repeats, TCO CTA Certification and Letter of Reference

CTSME: Certified Telecommunications Subject Matter Expert certification package includes this course.

Certified IP Telecom Network Specialist (CIPTS) Certification Package
Four courses including this one with unlimited repeats, TCO CIPTS Certification and Letter of Reference

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Certified Wireless Analyst (CWA) Courses

The CWA Certification Package includes three self-paced instructor-led training courses covering the full range of wireless fundamentals, jargon and technologies, giving you the knowledge required in the wireless business today — plus TCO Certification to prove it!

Purchase courses in this set of three in the CWA Certification Package, or individual courses as best meets your needs. Check out the CTNS + CWA combo package discount special!

The Certified Telecommunications Subject Matter Expert CTSME Certification Package
includes all of these courses at a substantial discount... plus 5 TCO certifications, all with unlimited repeats.

Upgrade your training with the CWA Study Guide!
136 pages packed with detailed notes and color diagrams, available in softcover, eBook and hardcover.

Students who learn better from a person than from computer-generated images will appreciate that many of the CWA lessons are taught to you by our entertaining instructor speaking directly to you via the camera, with on-screen bullets and graphics.

Asynchronous instructor-led training: as close as you can get to private lessons from the Course Director without actually being there!

Course 2231 Wireless Fundamentals

Radio fundamentals • Spectrum • Digital radio • Modems and Modulation • Propagation, Penetration and Fading

Wireless Fundamentals is the first course in the CWA Certification Package. We begin with the basics: what radio is, how it's organized and how and it's used to communicate information.

We begin by understanding what radio actually is, and why we use it for communications. We'll understand how radio frequencies are in the Gigahertz range, used within frequency bands measured in the Megahertz wide.

Then we will look at the spectrum, i.e. standardized bands of frequencies, how they are allocated and the need for licenses. You will learn which bands are used for what, from cordless phones to Wi-Fi and cellular, including new allocations in 600, 700 and 800 MHz bands, 3.5 GHz fixed wireless, and new allocations for 5G including the 3.7 GHz C-band... and how some aircraft operators learned the meaning of "spectrum clearing".

Next, we'll understand how information is represented using radio. The first stop is a quick review of old-fashioned analog radio and TV, followed by what most systems use today: digital. We'll spend some time understanding digital, how 1s and 0s are communicated by modems and familiarize you with jargon and buzzwords like QAM and QPSK.

We'll finish off with radio transmission issues, including propagation, penetration and fading.

Course Lessons

1. Radio Fundamentals (watch free)
2. Wireless Spectrum and Radio Bands (watch free)
3. Analog Radio
4. Digital Radio: How Modems Work
5. Propagation, Penetration and Fading

Course 2231
Wireless Fundamentals

1  Introduction to CWA

2  Radio

2.1  Definition of "Radio"

2.2  Applications for Radio

2.3  Representing Information Using Radio

3  Wireless Spectrum and Radio Bands

3.1  The Need for Regulation

3.2  Spectrum

3.2.1  Capacity vs. Performance Tradeoff

3.3  Frequency Bands

3.3.1  Broadcast Television

3.3.2  Repurposing of Broadcast Television Spectrum

3.3.3  Two-Way Radio: FDD or TDD

3.3.4  600 MHz Band

3.3.5  700 MHz Band

3.3.6  800, 900, 1800 and 1900 MHz bands

3.3.7  Unlicensed Bands

3.3.8  2.5 GHz Band

3.3.9  3.5 GHz Band

3.3.10  3.7 GHz C-Band 5G

3.3.11  Millimeter-Wave Bands

4  Analog Radio

4.1  Definition of Analog

4.2  Carrier Frequency for Radio

4.3  AM, FM and PM

5  Digital Radio: Modems

5.1  Amplitude Shift Keying

5.2  Frequency Shift Keying

5.3  Phase Shift Keying

5.4  Baud Rate

5.5  More Signals = More Bits

5.6  QPSK: 2 Bits per Signal

5.7  QAM

5.8  Limits

5.9  Summary

6  Propagation, Penetration and Fading

6.1  Propagation

6.2  Omni Antennas

6.3  Directional Antennas and Sectorization

6.4  Attenuation and Carrier-to-Noise Ratio

6.5  Fading

6.6  Interference

On completion of this course, you will be able to explain:

  • What is meant by "radio"
  • Why we use it
  • The frequencies and bands that are used
  • Which services each is used for
  • How we represent 1s and 0s on these bands, and
  • Transmission characteristics including propagation, penetration and fading.

Download the printable Course Brochure PDF


Individual Course  
with unlimited repeats, Teracom Course Completion Certificate

Certified Wireless Analyst (CWA) Certification Package
Three courses including this one with unlimited repeats, TCO CWA Certification and Letter of Reference

CWA+CTNS Bundle Offer

CTSME: Certified Telecommunications Subject Matter Expert certification package includes this course.

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Course 2232 Mobile Communications

Cellular Principles • Mobility • Handoffs • PSTN Phone Calls • Mobile Internet • FDMA, TDMA, CDMA, OFDM • GSM, UMTS, HSPA • LTE and OFDMA • 5G New Radio • mmWave • IoT

Course 2232 Mobile Communications is the second course in the CWA Certification Package.

With a good foundation in place, we'll cover mobile communications from A to Z. This is where the money is!

We begin with mobile network concepts and mobility terminology including base stations and transceivers, mobile switches and backhaul, handoffs, cellular radio concepts, virtual network operators and roaming.

You'll learn how voice calls using a PSTN phone number are connected from a mobile network to a landline network, and how and where the mobile operator connects to the Internet for mobile Internet service.

We'll review Wi-Fi hotspots: bridging a smartphone's mobile Internet service to its Wi-Fi Access Point, providing mobile internet to devices without cellular service.

We'll explain the different spectrum-sharing technologies and their variations: FDMA, TDMA, CDMA and OFDM, and installed-base technologies GSM, UMTS, HSPA.

Then we'll concentrate on LTE, LTE-Advanced and 5G New Radio, including millimeter-wave ultra broadband and low bitrates for IoT devices.

Course Lessons:

1. Mobile Network Components and Operation (watch free)
2. Cellular Principles
3. 1G: Analog Frequency-Division Multiple Access
4. Second Generation: Digital
5. PSTN Calls Using the Native Phone App: "Voice Minutes"
6. Mobile Internet: "Data Plan"
7. Mobile Network Operators, MVNOs & Roaming (watch free)
8. TDMA (IS-136): Time-Division Multiple Access
9. TDMA (GSM): Time-Division Multiple Access
10. CDMA: Code-Division Multiple Access
11. Spread Spectrum
12. CDMA Operation and Patents
13. 3G: CDMA 1X, UMTS and HSPA
14. 4G LTE: Mobile Broadband
15. Dynamic Assignment of Subcarriers
16. 5G NR: Enhanced Mobile Broadband, IoT Communications
17. Spectrum-Sharing Roundup: FDMA, TDMA, CDMA, OFDMA

Course 2232 Mobile Communications

1  Mobile Network Components and Operation

1.1  Mobile Network and Mobility

1.2  Handset, SIM Card and IMSI

1.3  Airlink, Base Station, Towers and Cells

1.4  Mobile Telephone Switching Office

1.5  Backhaul and Network Connections

1.6  Incoming Call and Paging

1.7  Mobility and Handoffs

2  Cellular Principles

2.1  Coverage, Capacity and Mobility Requirements

2.2  First Generation

2.3  Cellular Design to Meet the Coverage Objective

2.4  Frequency Re-use

2.5  Handoffs

3  1G: Analog Frequency-Division Multiple Access

3.1  AMPS, NMT and TACS

3.2  Frequency-Division Multiplexing

3.3  Frequency Re-Use

3.4  Analog FM

3.5  Difficulties

3.5.1  Eavesdropping

3.5.2  Modem Disconnect During Handoff

3.5.3  Low Capacity

4  Second Generation: Digital

4.1  Spectrum

4.2  Incompatible Spectrum-Sharing Technologies

4.2.1  CDMA: IS-95

4.2.2  TDMA: IS-136

4.2.3  GSM

5  PSTN Calls Using the Native Phone App: "Voice Minutes"

5.1  Voice Communication End to End

5.2  Coding

6  Mobile Internet: "Data Plan"

6.1  "Data" is Internet Traffic

6.2  Using the Built-in Modem

6.3  Tethered Modem

6.4  Wi-Fi and Bluetooth Links

6.5  Smartphones

6.6  Data Plans

6.7  Converged Communications + Converged Device Achieved

7  Mobile Network Operators, MVNOs & Roaming

7.1  Mobile Network Operator

7.2  Mobile Virtual Network Operator

7.3  Roaming

8  TDMA (IS-136) Time-Division Multiple Access

8.1  TDMA

8.2  IS-136 and D-AMPS

8.3  Capacity Increase

8.4  Inefficiency

9  TDMA (GSM)

9.1  Spectrum-Sharing Method

9.2  Inefficiency

9.3  Data, GPRS and EDGE

9.4  Terminology: Misuse of the Term "GSM Phone"

10  CDMA Code-Division Multiple Access

10.1  Carriers

10.2  Codes

10.3  Forward Error Correction

10.4  Variable-Rate Coding

10.5  Packetized Voice and Data

10.6  Qualcomm, IS-95A and IS-95B

11  Spread Spectrum

11.1  Chips and Chipping Rate

11.2  Spreading

11.3  Direct Sequence vs. Frequency Hopping Spread Spectrum

11.4  Error Correction

11.5  Rake Filters and Multipath

12  CDMA Operation and Patents

12.1  Communication via Multiple Base Stations

12.2  Multipath

12.3  Soft Handoffs

12.4  Walsh Codes and Pseudonoise

12.5  Base Station Identification, Short Codes and Timing

12.6  Power Control

12.7  Qualcomm

13  3G: CDMA 1X, UMTS and HSPA

13.1  IMT-2000

13.2  1X

13.3  Data-Optimized Carriers

13.4  Capitulation

14  4G LTE: Mobile Broadband

14.1  Introduction

14.2  LTE for the UTRAN

14.3  Modems, Modulation, and How OFDM Moves 6-Bit Numbers Simultaneously to Different People on the Same Carrier

14.3.1  Modulation

14.3.2  Communicating Six Bits: Sending One of 64 QAM Signals

14.3.3  Baud Rate Equal to Subcarrier Spacing

14.3.4  LTE Specification and OFDMA

14.4  3GPP Releases

14.4.1  The Eventual Pivot To 5G Across the Spectrum

15  Dynamic Assignment of Subcarriers

15.1  1G vs. 4G and 5G

16  5G New Radio: Enhanced Mobile Broadband, IoT Communications

16.1  Introduction

16.2  3GPP Release 15

16.2.1  Immediate Impact Of 5G: More Bits Per Second

16.3  New Spectrum

16.3.1  Millimeter-wave

16.4  5G Design Goals and Use Cases

16.4.1  Enhanced Mobile Broadband

16.4.2  Massive Machine-type Communication

16.4.3  Ultra-Reliable, Low-Latency Communications

17  Spectrum-Sharing Roundup: FDMA, TDMA, CDMA, OFDMA

17.1  FDMA

17.2  TDMA

17.3  CDMA

17.4  OFDM and OFDMA

On completion of this course, you will be able to:

  • Draw a model of a cellular wireless telecommunications network
  • Identify all of its components and technologies from handset to mobile switch
  • Explain what "cellular" radio systems are is and why they are used
  • Explain what a handoff is, and how this implements mobility
  • Explain the characteristics and operation of FDMA, TDMA, CDMA and OFDMA
  • Which technologies and generations each is associated with
  • Explain the difference between what mobile operators call "voice minutes" and "data plan"
  • Explain mobile internet access via cellular, tethered modems and mobile Wi-Fi hotspots
  • Define OFDMA and how it is used in LTE and 5G
  • Outline the use cases for 5G and the expected bit rates
  • Differentiate between 5G low bitrate, long reach for IoT vs. 5G ultra-broadband, short reach for VR

Download the printable Course Brochure PDF


Individual Course  
with unlimited repeats, Teracom Course Completion Certificate.

Certified Wireless Analyst (CWA) Certification Package
Three courses including this one with unlimited repeats, TCO CWA Certification and Letter of Reference

CWA+CTNS Bundle Offer

CTSME: Certified Telecommunications Subject Matter Expert certification package includes this course.

Shop with confidence!
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Course 2233 Fixed Wireless

Wireless LANs • 802.11 Standards • Wi-Fi • Security • Bluetooth • 3.5 GHz Wireless Home Internet • Point-to-Point Microwave • Low-Power Wide-Area Networks for IoT • Satellites

Course 2233 Fixed Wireless is the third and final course in the CWA Certification Package.

We'll round out your knowledge with wireless that does not support mobility, including the most important, Wi-Fi, and other current technologies.

We'll start with infrared and Bluetooth.

Next is Wi-Fi, more accurately called 802.11 Wireless LANs. We'll explain how Wi-Fi works, and survey the different variations like 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac and the latest 802.11ax Wi-Fi 6, the first full-duplex Wi-Fi.

Then we'll cover the crucial issue of security on Wi-Fi and why you want the WPA-2 Personal standard.

We'll cover the new 3.5 GHz Fixed Wireless Broadband Home Internet, and Low-Power Wide Area (LPWA) Networks for the Internet of Things.

We finish off with point-to-point microwave systems, and satellites: Low Earth Orbit (LEO) and Geosynchronous Earth Orbit (GEO) satellites and how they are used for voice and data communications.

Course Lessons

1. Infrared
2. Bluetooth (watch free)
3. Wi-Fi: Wireless LANs
4. Wi-Fi Security and WPA2
5. Point-to-Point Microwave
6. 3.5 GHz Broadband Wireless Home Internet (watch free)
7. Low-Power Wide Area Radio Networks for IoT
8. Satellite Communications

Course 2233 Fixed Wireless

1  Infrared

1.1  IrDA

1.2  Wavelength

1.3  Start/Stop/Parity

2  Bluetooth

2.1  Data Rates and Variations

2.2  Frequency-Hopping Spread Spectrum

2.3  Masters and Slaves, Ticks and Slots

2.4  Discovery and Connection

3  Wi-Fi: Wireless LANs

3.1  Access Point and SSID

3.2  Half-Duplex

3.3  802.11 Standards

3.3.1  2.4 GHz Band

3.3.2  5 GHz Band

3.4  Application

4  Wi-Fi Security and WPA2

4.1  Address Filtering

4.2  Eavesdropping

4.3  Airlink Encryption

4.4  WEP and WPA2

4.5  WPA2 Enterprise vs. Personal

4.6  Operation

5  Point-to-Point Microwave

5.1  Frequency Bands

5.2  Fading, Diversity and Error Correction

6  3.5 GHz Broadband Fixed Wireless Internet

6.1  Initial Deployment

6.2  Near-Field Interference

6.3  Subsequent Deployments

7  Low-Power Wide-Area (LPWA) Radio Networks for IoT

7.1  Technologies Deployed by Non-Mobile Network Operators

7.2  Technologies Deployed by Mobile Network Operators

7.3  The 5G Steamroller

8  Satellite Communications

8.1  Introduction

8.2  Geosynchronous Earth Orbit

8.2.1  Path Delay

8.3  Low Earth Orbit

On completion of this course, you will be able to explain

  • How TV remote controls communicate,
  • How Bluetooth uses frequency hopping to define channels,
  • How Wi-Fi and wireless LANs work,
  • The relative merits of different flavors of 802.11,
  • How Wi-Fi security is implemented and the best choice,
  • What WiMAX is and where it is headed,
  • What point-to-point microwave is and its applications, and
  • The differences in operation and application for LEO and GEO satellite communications.

Download the printable Course Brochure PDF


Individual Course  
with unlimited repeats, Teracom Course Completion Certificate

Certified Wireless Analyst (CWA) Certification Package
Three courses including this one with unlimited repeats, TCO CWA Certification and Letter of Reference

CWA+CTNS Bundle Offer

CTSME: Certified Telecommunications Subject Matter Expert certification package includes this course.

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All choices come with a 100% Money-Back Guarantee: full refund within 30 days.

Certified VoIP Analyst (CVA) Courses

The CVA Certification Package includes six courses, the CVA Certification Exam, TCO Certificate and Personalized Letter of Reference.  Unlimited repeats of exams and courses: guaranteed to pass, refresh your knowledge anytime.

CVA covers all major VoIP, SIP and IP telephone system topics: VoIP equipment, the ways VoIP is implemented, packetized voice fundamentals, sound quality with sound samples, MPLS, SLAs and CoS, SIP, SIP trunking and more.

2221 Fundamentals of Voice over IP
2222 VoIP Architectures and Implementation Choices
2223 Softswitches, SIP and VoIP Call Setup
2224 Voice Packetization, Codecs and Voice Quality
2225 SIP Trunking & Carrier Connections
2226 IP Network Quality: CoS, QoS, MPLS and SLAs

These courses build on IP and PSTN fundamentals. If you are completely new to telecom, we recommend you take the CTNS courses first to build a knowledge base, then the CVA courses.

Purchase courses in this set of six in the CVA Certification Package, or individual courses as best meets your needs.

The Certified Telecommunications Subject Matter Expert CTSME Certification Package
includes all of these courses at a substantial discount... plus 5 TCO certifications, all with unlimited repeats.

Check out the CTNS + CVA combo package discount special!

Upgrade your training with the CVA Study Guide!
126 pages packed with detailed notes and color diagrams, available in softcover, eBook and hardcover.

Course 2221 Fundamentals of Voice over IP

Jargon & Buzzwords • VoIP Phone System Components and Operation • Voice Packetization • LANs and WANs • VoIP Phones: MAC Address, DHCP, IP, UDP, RTP, QoS • SIP, Softswitches & SIP Trunking • Cloud • The Future

Fundamentals of Voice over IP is a complete introduction to everything Voice over IP. You'll learn the fundamental ideas and principles of a VoIP telephone system, VoIP, SIP & all the other jargon - what it actually means and how it all works together.

At each step, we'll also cover supporting and related technologies like Ethernet MAC frames and codecs and video over IP.

Course Lessons
1. The Big Picture (watch free)
2. Terminals
3. Voice in Packets (watch free)
4. SIP and Soft Switches / SIP Servers / Call Managers
5. Media Servers: Video Servers
6. Gateways
7. LANs and WANs
8. Key VoIP Standards
9. Where All of This is Headed: IP Dial Tone

This course can be taken by anyone who needs to get up to speed on all things VoIP. You will gain career-enhancing knowledge of the components and operation of Voice over IP systems, and learn what all of the jargon and buzzwords mean.

It also serves as a first pass through topics that are covered in greater detail in subsequent lessons.

Lesson 1. Introduction  watch now (free)
- Course overview, fundamental concepts
Lesson 2. VoIP Phones and Terminals
- Voice over IP phone: computer functions
- MAC address and Ethernet LAN interface
- IP address and DHCP, UDP
- Telephone functions
- Speech digitization and codecs
- Creating IP packets containing voice
- SIP client for call setup: SIP basics
- Minimum requirement for VoIP phone
- Optional: display, video codec, camera, keyboard, …
- QoS and packet classification
- Packet labeling
- Differentiated services: prioritization
- Softphones on computer screens
- 4G cellular is VoIP

Lesson 3. Voice in IP Packets  watch now (free)
- Digitizing voice
- Encapsulation in IP packets
- Carried in MAC frames
- Tracing a phone call end-to-end
- Voice quality & jitter buffers

Lesson 4. SIP and Softswitches - SIP Servers / Call Managers
- Visit to a DMS-100 CO switch
- Softswitch vs. traditional PBX / CO switch
- Registration with SIP server
- SIP call disposition rules
- SIP:  finding out the called party’s IP address
- How SIP works
- Hosted PBX
- Cloud servers: softswitch as a service

Lesson 5. Media Servers
- Video is where the money is
- Integrated messaging
- Video on demand and Video over IP
- Video server - Netflix server appliance
- DVR as a network service
- Streaming music
- Digital rights management

Lesson 6. Gateways
- Protocol converters
- Traditional DS0 telephony vs. Voice over IP
- Packets - streaming DS0 media format conversion
- SIP - PSTN ISDN signaling conversion
- Media gateway & Media Gateway Control Protocol

Lesson 7. LANs and WANs
- LANs: physical connection and MAC addresses
- Gigabit Ethernet: Cat 5e, 6
- Optical Ethernet in the core
- IP packets carried in MAC frames between devices
- Power over Ethernet (PoE)
- Uninterruptible power supply
- Wiring closets
- LAN switches
- VoIP over Wi-Fi: 802.11
- Wi-Fi Access Point connections

- WAN: between buildings
- Access, network service type, billing agreement
- Fiber, cable, DSL, wireless access
- Legacy WAN services: T1, Frame Relay, ATM
- Current IP WAN services
- Internet and Internet VPNs
- Service Level Agreement (SLA) and MPLS VPNs
- SIP Trunking

Lesson 8. Key VoIP Standards
- IETF RFCs
- SIP and SDP
- RTP: time stamps
- correcting jitter with RTP
- UDP and TCP.  How TCP works.
- IP: network addresses for packets
- ITU G.711 voice and H.264 video codecs
- IEEE 802.3 Ethernet, 802.11 Wi-Fi,
- 802.2 MAC addresses & MAC frames
- Cat 5, 5e, 6 cables
- Optical Ethernet

Lesson 9. Where All of This is Headed: IP Dial Tone
- The IP-PSTN
- The Packet-Switched Telecommunications Network
- IP Dial Tone: send an IP packet to anywhere, anything
- Telephone network and Internet become the same thing: the IP-PSTN
- Telephone service = SIP
- Web surfing = DNS
- Value-added services: e.g. SIP Trunking
- Cloud SIP servers: Google Voice
-  Underlying technologies: IP, MPLS and Ethernet


Individual Course  
with unlimited repeats, Teracom Course Completion Certificate

Certified VoIP Analyst (CVA) Certification Package
Six courses including this one with unlimited repeats, TCO CVA Certification and Letter of Reference

CTNS + CVA Combo Discount Special
Get CTNS and CVA Certification Packages together at a discount

CTSME: Certified Telecommunications Subject Matter Expert certification package includes this course.

Shop with confidence!
All choices come with a money-back guarantee: full refund within 30 days.

Course 2222 VoIP Architectures and Implementations

VoIP over the Internet •  VoIP at Carriers • VoIP-Enabled PBX • PBX Replacement • Softswitches • Hosted PBX • Cloud Services • IP Centrex • Asterisk & Open-Source • SO/HO VoIP Phone Features

VoIP Architectures and Implementation Choices is a comprehensive overview of the many flavors of VoIP, comparing and contrasting the various implementation and architecture choices.

Progressing from talking between computers over the Internet through Internet telephony, Managed IP Telephony, PBX enhancement, PBX replacement with call manager / softswitch systems, IP Centrex, Hosted PBX and Cloud Services, you'll gain the knowledge to confidently differentiate VoIP architectures and discuss pros and cons of options.

Course Lessons
1. Intro + Internet Telephony: Computer-Computer VoIP over the Internet
2. Internet Telephony Example: Skype
3. VSPs: Internet to Phone e.g. Gmail Client (watch free)
4. VSP Phone to Phone over Internet e.g. Vonage
5. VoIP Becomes The New POTS
6. VoIP at Carriers
7. VoIP-Enabled PBX and Migration Options
8. Premise Softswitch: PBX Replacement
9. Cloud Services and Hosted PBX: Softswitch as a Service (SaaS)
10. IP Centrex
11. Asterisk and Open-Source Softswitch Software
12. IP Phone Features and Uses

Based on Teracom's famous Course 130, tuned and refined over the course of over 20 years of instructor-led training, you will gain career- and productivity-enhancing knowledge of all of the different things someone could mean when they say "Voice over IP", and the pros and cons of each.

On completion of this course, you will be able to explain
  • The user and network components required for computer to computer VoIP phone calls over the Internet (e.g. Skype)
  • The user and network components required for computer to POTS line VoIP phone calls over the Internet (e.g. gmail client, Google Hangouts Dialer)
  • The user and network components required for phone to phone VoIP phone calls over the Internet (e.g. Vonage)
  • How and why VoIP will replace POTS
  • The implementation of VoIP at carriers
  • How VoIP at a business can be implemented by upgrading an existing PBX, and why this choice would be made
  • How VoIP at a business can be implemented by replacing an existing PBX with a softswitch / call manager, and why this choice would be made
  • The pros and cons of cloud-based softswitch services, sometimes called "Hosted PBX"
  • How the telephone company can provide and manage everything with a service called IP Centrex, and its advantages and disadvantages
  • What asterisk is, and the risks involved with unsupported open-source software, and
  • Features available on VoIP phones

Individual Course  
with unlimited repeats, Teracom Course Completion Certificate

Certified VoIP Analyst (CVA) Certification Package
Six courses including this one with unlimited repeats, TCO CVA Certification and Letter of Reference

CTNS + CVA Combo Discount Special
Get CTNS and CVA Certification Packages together at a discount

CTSME: Certified Telecommunications Subject Matter Expert certification package includes this course.

Shop with confidence!
All choices come with a money-back guarantee: full refund within 30 days.

Course 2223 Softswitches, SIP, and VoIP Call Setup

What SIP Is • What It Does • URIs: SIP Phone Numbers • Call Setup Procedure • Call Disposition Rules • How SIP relates to Softswitches and Call Managers

Softswitches, SIP and Call Setup is all about how VoIP phone calls are set up using messages and procedures complying with the standard Session Initiation Protocol.

In this course, you'll understand what SIP is, how it works, demystify jargon like proxy server and location server, understand how SIP fits in with softswitches and call managers, and trace the establishment of an IP phone call step by step.

Course Lessons
1. Intro + What SIP Is and What It Can Do (watch free)
2. SIP's Relationship to Other Protocols
3. SIP URIs: Telephone Numbers
4. Register: Update Your Location
5. INVITE: Dialing
6. Location Service: Finding the Far End
7. The SIP Trapezoid
8. SIP Messages and the Session Description Protocol
9. How SIP Relates to Softswitches and Call Managers

Based on Teracom’s famous Course 130, tuned and refined over the course of over 20 years of instructor-led training, you will gain career- and productivity-enhancing knowledge of how SIP is used to set up a VoIP phone call end-to-end, and how SIP fits in with call managers and softswitches.

On completion of this course, you will be able to explain
  • What SIP is and what SIP does
  • How and why the essential purpose of SIP is to find out the numeric IP address of the called party's telephone, so the telephones can communicate directly thereafter
  • Relationship between SIP and other protocols like IP and UDP
  • How SIP relates to softswitches and call managers
  • How administration, authorization and accounting are implemented
  • What a SIP "telephone number" is: URIs
  • What a proxy server is
  • How a VoIP telephone call is set up using SIP:
  • Registering with a softswitch and populating a location table
  • Sending an INVITE message to your proxy server
  • How your proxy server finds the far-end proxy server
  • How the far-end proxy server finds the called party
  • How the far-end indicates it will take a call
  • The Session Description Protocol, and what crucial information is passed to the caller at this point
  • How the call is ended
  • How these steps are explained with a SIP trapezoid diagram

Individual Course  
with unlimited repeats, Teracom Course Completion Certificate

Certified VoIP Analyst (CVA) Certification Package
Six courses including this one with unlimited repeats, TCO CVA Certification and Letter of Reference

CTNS + CVA Combo Discount Special
Get CTNS and CVA Certification Packages together at a discount

CTSME: Certified Telecommunications Subject Matter Expert certification package includes this course.

Shop with confidence!
All choices come with a money-back guarantee: full refund within 30 days.

Course 2224 Voice Packetization, Codecs and Voice Quality

How Voice is Digitized and Packetized • Voice Quality • Codecs • Delay and Jitter • How Packets Are "Lost" • Packet Loss Sound Samples • RTP • VoIP Protocol Stack: RTP/UDP/IP/MAC

Voice Packetization, Codecs and Voice Quality is the "nuts and bolts" of Voice over IP: how the voice is digitized and coded, time stamps applied with the RTP protocol, and how the result is carried in UDP, IP packets and MAC frames.

You'll learn about codecs and compression, and understand factors like delay, jitter and packet loss, what causes them, and how they affect sound quality.

Sample sound clips with lost packets and uncorrected timing variations are included in Lesson 9 so you can hear the effects.

Course Lessons
1. Voice Packetization
2. Measuring Voice Quality
3. Factors Affecting Voice Quality
4. Codecs: Voice Coding and Compression
5. Delay
6. Jitter
7. RTP
8. Protocol Stack: RTP, UDP, IP, MAC
9. Packet Loss and Sound Samples (watch free)
10 .Tips for Maximizing Voice Quality

Based on Teracom’s famous Course 130, tuned and refined over the course of over 20 years of instructor-led training, you will gain career- and productivity-enhancing knowledge of how packetized voice is actually implemented and the factors affecting sound quality.

On completion of this course, you will be able to explain
  • How voice is packetized: digitization, coding and segmentation of the bit stream into ~20 ms segments
  • How and why RTP is used to put a time stamp on each segment
  • Why UDP is used to carry the RTP output, and the two critical functions the UDP implements
  • The full VoIP protocol stack
  • How sound quality is measured, and the target quality level
  • The factors that affect sound quality
  • Different choices for codecs and why G.711 is preferred
  • What delay and jitter are, how they happen
  • How packets actually get "lost" in a network
  • How delay, jitter and packet loss are corrected at the far-end telephone
  • Basic guidelines for maximizing sound quality
  • Testing and troubleshooting techniques

Individual Course  
with unlimited repeats, Teracom Course Completion Certificate

Certified VoIP Analyst (CVA) Certification Package
Six courses including this one with unlimited repeats, TCO CVA Certification and Letter of Reference

CTNS + CVA Combo Discount Special
Get CTNS and CVA Certification Packages together at a discount

CTSME: Certified Telecommunications Subject Matter Expert certification package includes this course.

Shop with confidence!
All choices come with a money-back guarantee: full refund within 30 days.

Course 2225 SIP Trunking & Carrier Connections

Carrier Interconnect: Switched Access Tariff • Gateways & DSOs • Native VoIP Carrier-Carrier • Session Border Controller • Gateway + PBX/PRI Trunks • SIP Trunking

SIP Trunking & Carrier Connections is all about connecting to carriers to communicate VoIP phone calls, both carrier-to-carrier connections and business-to-carrier SIP trunking.

You'll learn how the only way for a competitive carrier to terminate a VoIP phone call on a Local Exchange Carrier for the last mile is currently the switched access tariff, converting to DS0 channels using a gateway.

We'll understand why this will be a native VoIP connection in the future, and the role of Session Border Controllers.

Then we'll understand how a business system can connect to the PSTN using a gateway and PBX trunks, and the advantages of the newer SIP Trunking services for business to PSTN connection.

Course Lessons
1. Introduction + Carrier-LEC Connection via DS0
2. Carrier-LEC VoIP Interconnection (watch free)
3. Session Border Controllers
4. Business -LEC PBX Trunks and Gateway
5. Softswitch Controlling the Gateway
6. SIP Trunking: Native VoIP Connections

Based on Teracom’s famous Course 130, tuned and refined over the course of over 20 years of instructor-led training, you will gain career- and productivity-enhancing knowledge of how connections are made to carriers, both for business-PSTN connections and carrier-carrier connections.

On completion of this course, you will be able to explain
  • How currently, the only way for a long-distance carrier to terminate a phone call on a LEC is via the switched-access tariff from the 1980s.
  • What switched access means: channelized time division multiplexing and DS0 channels
  • How competitive carriers would prefer to terminate phone calls via native Voice over IP, i.e. in IP packets instead of DS0 channels
  • What a Session Border Controller is, what they do and why they are used
  • How channelized DS0 connections implemented with ISDN PRI carrying PBX trunks have been the standard choice for business to LEC connections in the past
  • How a gateway is used to connect an in-building VoIP system to this kind of legacy channelized interface to the phone company
  • How the gateway is controlled by the softswitch
  • What SIP trunking is, and why it is rapidly replacing PBX trunks
  • How SIP trunking eliminates the need for gateways
  • How SIP trunking eliminates the need for expensive channelized circuits

Individual Course  
with unlimited repeats, Teracom Course Completion Certificate

Certified VoIP Analyst (CVA) Certification Package
Six courses including this one with unlimited repeats, TCO CVA Certification and Letter of Reference

CTNS + CVA Combo Discount Special
Get CTNS and CVA Certification Packages together at a discount

CTSME: Certified Telecommunications Subject Matter Expert certification package includes this course.

Shop with confidence!
All choices come with a money-back guarantee: full refund within 30 days.

Course 2226 IP Network Quality: CoS, QoS, MPLS and SLAs

Virtual Circuit Concepts • MPLS Fundamentals & Jargon • Class of Service (CoS) • Service Level Agreement (SLA) • Traffic Profiles • Prioritization • Traffic Policing: "Throttling" • Diff-Serv and MPLS • 802.1P

IP Network Quality CoS, QoS, MPLS and Diff-Serv focuses on the network service provided by carriers to move packets containing voice, and how network traffic is identified, managed and prioritized, resulting in Class of Service offerings to meet Service Level Agreements.

You will learn how carriers use virtual circuits to manage flows of IP packets, and how MPLS is used to do this.

You will understand the idea of Differentiated Services: different transmission characteristics for different kinds of traffic, and how these are implemented as Classes of Service (CoS).

We'll cover Service Level Agreements and how "throttling" some users is sometimes necessary to ensure all users are getting the CoS they are paying for.

We'll cover the Quality of Service (QoS) mechanisms MPLS and 802.1P and how Classes of Service are implemented by routers.

Course Lessons
1. Course Introduction + Virtual Circuit Technologies (watch free)
2. MPLS
3. Differentiated Services (Diff-Serv)
4. Service Level Agreements, Meters, Markers, Shapers and Droppers
5. Interworking Diff-Serv and MPLS
6. Using 802.1P for QoS
7. Implementing CoS: Queuing Techniques

Based on Teracom’s famous Course 130, tuned and refined over the course of over 20 years of instructor-led training, you will gain career- and productivity-enhancing knowledge of network quality, how it is specified and implemented.

On completion of this course, you will be able to explain
  • What a virtual circuit is
  • How MPLS is used to implement virtual circuits
  • What a Class of Service (CoS) is
  • How MPLS is used to implement Differentiated Services, i.e. different Classes of Service for different traffic
  • Expedited Forwarding
  • What a Service Level Agreement (SLA) is
  • How meters, markers, shapers and droppers are used to condition traffic streams and "throttle" or police specific traffic
  • How 801.2P can also be used as a Quality of Service (QoS) mechanism
  • Basic ideas how prioritization is actually implemented in a router

Individual Course  
with unlimited repeats, Teracom Course Completion Certificate

Certified VoIP Analyst (CVA) Certification Package
Six courses including this one with unlimited repeats, TCO CVA Certification and Letter of Reference

CTNS + CVA Combo Discount Special
Get CTNS and CVA Certification Packages together at a discount

CTSME: Certified Telecommunications Subject Matter Expert certification package includes this course.

Shop with confidence!
All choices come with a money-back guarantee: full refund within 30 days.

Teracom Advantages

  • Proven courses used by the biggest telecom carriers to train their employees
    These courses are the same courses used by the biggest telecom carriers in the business to train their employees - constantly updated to deliver the core technical knowledge required in the telecom business today. This is the best quality training of its kind available.
  • GSA Schedule
    Teracom online courses and certification packages are on our US Government supply contract... which took two years and a 200-page application... so you know you are getting quality.
  • 100% Money-Back Guarantee
    You are protected by Teracom's 30-day, no-questions-asked, 100% money-back guarantee.
  • Career-enhancing knowledge
    This training is an ideal way to implement a career-enhancing upgrade to your knowledge,
    or to prepare for a job in the telecommunications business.
  • Guaranteed to Pass with the Unlimited Plan
    Choose the Unlimited Plan for unlimited repeats of courses and exams - which means you can retake courses to refresh your knowledge in the future, and guaranteed to pass the exam if you're willing to learn.  unlimited plan info
  • Self-paced training
    The courses and their lessons can be done at your own pace. There are no time limits for completing a lesson and moving to the next one. The courses may be done in any order.
  • Team training
    These courses are a highly cost-effective and consistent way for managers to get team members up to a common speed with measurable results. The myTeracom Learning Management System provides management reports showing your team's progress with a few clicks of the mouse.

Available Study Guides in Print or eBook

T101 Telecom 101 CTA Study Guide and Telecommunications Textbook
 
T4210 Telecom, Datacom and Networking for Non‑Engineers CTNS Study Guide
 
TCO Certified ‏Wireless Analyst (CWA) Study Guide
 
TCO Certified VoIP Analyst (CVA) Study Guide

Technical Level and Intended Audience

Our training has been taught to wide acclaim across North America since 1992 and is designed for the non-engineering professional needing an overview and update, and for those new to the business needing to get up to speed quickly on telecommunications, data communications, broadband, IP, MPLS, wireless, networking, Voice over IP (VoIP) phone systems, SIP and security.

Our emphasis is conveying the key concept-level knowledge in plain English - which you can't get reading trade magazines or talking to vendors. We put in place a solid, valuable and long-lasting understanding. It is our goal to bust the buzzwords, demystify the jargon, and cut through the double-talk to present a clear, cohesive picture.

Based on Teracom's proven instructor-led training courses developed and refined over twenty years providing training for organizations including AT&T, Verizon, Bell Canada, Intel, Microsoft, Cisco, Qualcomm, the CIA, NSA, IRS, FAA, US Army, Navy, Marines and Air Force and hundreds of others, Teracom online courses are top-notch, top-quality and right up to date with the topics and knowledge you need.

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Teracom's high-quality online courses are delivered in Google Chrome browser on any Windows or mac desktop or laptop, iPad, android tablet or phone with an internet connection... to any number of people, anywhere, anytime.

Ideal for self-paced training, courses are divided into lessons. Stay on a lesson for as long as you like, and move to the next lesson then write the course exam only when ready.

Team training packages with group discount and management reporting from our Learning Management System are very popular.

With the Unlimited Plan, you can repeat exams as needed, and retake courses anytime in the future. There are no time limits or expiration dates. 30-day 100% money-back guarantee.