Course 2222 VoIP Architectures and Implementations – Free Preview

CVA – Certified VOIP Analyst
Course 2222 VoIP Architectures and Implementations
Lesson 3 – VSPs: Internet to Phone e.g. Gmail Client

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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.

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Course 2222 VoIP Architectures and Implementations

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
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.

This is just a small sample of the vast online telecommunication training and certification available through Teracom Training.

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CVA Unlimited Plan $459 
Six courses covering everything VoIP and SIP.

Check out the CTNS+CVA package deal $659.
The foundations of telecommunications plus everything VoIP and SIP.

Course 2232 Mobile Communications – Free Preview

TCO Certified Wireless Analyst
Course 2232 Mobile Communications
Lesson 1 Introduction to Mobile Network Components and Operations

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Wireless Fundamentals is the second course in the CWA Certification Package.

We begin with basic mobile network concepts and mobility terminology including base stations and transceivers, mobile switches and backhaul, handoffs and cellular radio concepts.
Then, we cover spectrum-sharing technologies and their variations: FDMA, TDMA, CDMA and OFDM, the generations of technology 1G, 2G, 3G and 4G, and the technologies GSM, 1X, UMTS, HSPA and LTE.
We’ll understand how mobile Internet access is implemented for a smartphone, and how you can keep kids quiet on car trips by turning your phone into a mobile WiFi base station.

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Course 2232 Mobile Communications

Course Lessons
1. Mobile Network Components and Operation
2. Cellular
3. 1G: Analog Frequency-Division Multiple Access
4. Second Generation: Digital Cellular
5. Digital Cellular: Voice Communications
6. Internet Access via Cellular: “Data” Communications
7. 2G: TDMA (IS-136) Time-Division Multiple Access
8. 2G: TDMA (GSM) Time-Division Multiple Access
9. 2G: CDMA Code-Division Multiple Access
10. Spread Spectrum
11. CDMA Operation and Patents
12. 3G: CDMA 1X and UMTS
13. 4G: LTE
14. 4G: OFDM
15. Dynamic Assignment of Subcarriers
16. Spectrum-Sharing Roundup: FDMA, TDMA, CDMA, OFDM

This is just a small sample of the vast online telecommunication training and certification available through Teracom Training.

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Course 2221 Fundamentals of Voice over IP – Free Preview

TCO Certified VoIP Analyst (CVA)
Course 2221 Fundamentals of Voice over IP
Lesson 1: Introducton to the Fundamentals of VOIP

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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.

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Course 2221 Fundamentals of Voice over IP

This is just a small sample of the vast online telecommunication training and certification available through Teracom Training.

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BOOT CAMP Online Live – Sep 21-25, 2020 – Registration Now Open Worldwide

Adapt to travel and meeting restrictions!

Benefit from the week-long BOOT CAMP training, with the same instructors, materials, interaction and knowledge transfer via live videoconferencing.

Specifically designed for non‑engineers, Teracom’s renowned telecommunications training is two courses back-to-back to make a full week called BOOT CAMP:

Core training Course 101: Broadband, Telecom, Datacom and Networking for Non‑Engineers Monday – Wednesday, then
Course 130: Voice over IP, SIP, Security, 5G and IoT Thursday and Friday.
You may register for individual courses or the full week as best meets your needs. Most people attend all five days, designated as Course 111 BOOT CAMP, to get the most comprehensive and highest quality telecommunications training available, at a discounted price, with three TCO Certifications included: CTNS, CVA and the prestigious TCO CTA Certification.

You will bust the buzzwords, understand the jargon and technologies, and most importantly, the underlying ideas, and how it all fits together …knowledge you can’t get on the job, talking to salespeople or reading articles.

Plus, you’ll get two printed course books with detailed notes bringing all of this material together and sure to be valuable references for years to come. With a total of 25 bonus online certification courses, plus 3 TCO Certification exams, both with unlimited repeats and no time limits.

Your knowledge skills, accuracy, productivity and buzzword-frustration level will all be improved with this career-enhancing training. What’s not to like?

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Course 2231 Wireless Fundamentals – Free Preview

TCO Certified Wireless Analyst
Course 2231 Wireless Fundamentals
Lesson 1 Introduction and Radio Fundmentals

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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 WiFi and cellular, including the new 700-MHz bands.

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
2. Wireless Spectrum and Radio Bands
3. Analog Radio
4. Digital Radio: How Modems Work
5. Propagation, Penetration and Fading

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Course 2231 Wireless Fundamentals

This is just a small sample of the vast online telecommunication training and certification available through Teracom Training.

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Tutorial: Mobile Operators, MVNOs and Roaming

From the new Telecom 101 Fifth Edition: 2020

9.7 Mobile Operators, MVNOs and Roaming

9.7.1 Mobile Network Operator

Mobile Network Operator (MNO) is the term usually used to refer to a facilities-based carrier, i.e. a company that owns base stations, a mobile switch, backhaul between them, and spectrum licenses, and sells services to the public… and to other carriers.

The MNO implements external links to other carriers for PSTN phone calls and for Internet traffic.

For PSTN phone calls, the MNO implements a fiber optic connection to a building traditionally called a Toll Center or Class 4 switching office. The termination of their fiber in that building is called a POP. It is their physical point of presence in the building.

Many other carriers have POPs in the building, including the ILEC, IXCs, CATV companies, other mobile carriers, and any other company that wants to connect phone calls to a phone on the MNO’s network.

The operator of the toll center, usually the ILEC, provides a switch in the Toll Center to switch phone calls from one carrier’s POP to a different carrier’s POP.

For Internet access, the MNO implements a fiber optic connection to one or more Internet Exchange buildings, where they pay the operator of the IX to route packets to other carriers with whom the MNO has established IP packet transit and peering arrangements.

9.7.2 Mobile Virtual Network Operator

Mobile Virtual Network Operator (MVNO) is the term used to refer to a non-facilities-based carrier… one that does not own the hardware or spectrum licenses or POPs.

Instead, the MVNO enters into a long-term contract with one or more facilities-based carriers to have them supply a “white label” service that the MVNO sells.

Typically the MVNO will develop a unique branding and sell smartphones and tablets to go along with its service.

When the MVNO deals exclusively with one carrier, the MVNO bill to the customer would be typically generated by the facilities-based carrier as a white-label service.

If the MVNO is very large and deals with multiple carriers, the MVNO may operate their own billing system, which is a significant investment.

The facilities-based carrier charges to the MVNO includes a volume-discount rate for IP addresses and Internet traffic, voice-minute airtime and switched access to the POP for PSTN phone calls.

The MVNO also has to pay for connectivity from the POP to other toll centers for “long-distance” connections, and the switched-access charge at the far end.

The rate plan the MVNO pays could be a mix of fixed-rate leases and usage-based billing.

Unless the MNO is obliged to sell capacity to MVNOs through regulations and tariffs, the nature of the plan is confidential business information.

9.7.3 Roaming

Roaming service is very similar to the service provided to MVNOs, in that it is the MNO that is providing the airlink, base stations, backhaul, mobile switch and connections to the PSTN and Internet.

In the case of roaming, the visitor uses their own phone, and billing is usage-based.

Roaming is an important feature for smaller players: they are facilities-based in selected cities, but to offer a national and international service to their customers, they must have roaming agreements in place with MNOs in other locations.

By denying roaming service to smaller or startup carriers, or charging an exorbitant price for roaming, an incumbent carrier can erect a barrier against competition.

In many countries, the right to roam and the wholesale cost of roaming is regulated to encourage competition.

Source: Telecom 101 5th Edition, Section 9.7

Telecom 101 Fifth Edition: 2020 Now Available!

High-Quality Reference Book and Study Guide
Covering All Major Telecommunications Topics… in Plain English.

7″ x 9″ softcover book • printed in color • 550 pages • 5th edition • published 2020                
ISBN 9781894887588 (print)   ISBN 9781894887595 (eBook)

Packed with information, authoritative, covering all major topics – and written in plain English – Telecom 101 is also an invaluable textbook and day-to-day reference on telecom.

Completely updated and revised for the 2020s, the new Fifth Edition of Telecom 101 is the materials from the latest version of Teracom’s famous Course 101 Broadband, Telecom, Datacom and Networking for Non-Engineers, plus additional topics and chapters.

In a user-friendly 7 x 9″ softcover version, printed in color, or in eBook format, Telecom 101 brings you in one volume consistency, completeness and unbeatable value.

Telecom 101 also serves as a study guide for the Telecommunications Certification Organization TCO Certified Telecommunications Analyst (CTA) telecommunications certification, covering all material required for the CTA Certification Exam except the security module.

Our approach can be summed up with a simple philosophy: Start at the beginning. Progress in a logical order. Build one concept on top of another. Finish at the end. Avoid jargon. Speak in plain English.

Bust the buzzwords, demystify jargon, and cut through doubletalk! Fill gaps and build a solid base of structured knowledge. Understand how everything fits together. … knowledge and understanding that lasts a lifetime.

Ideal for anyone needing a book covering all major topics in telecom, data communications, IP and networking… in plain English. A wealth of clear, concise, organized knowledge, impossible to find in one place anywhere else!

Stuck at Home?

Now is the perfect time to take online training to upgrade your knowledge and career options.

We have a full range of self-study, work-at-your-own-pace online training courses that come with unlimited access and a TCO certification.

Certified Telecommunications Network Specialist (CTNS)
Certified Telecommunications Analyst (CTA)
Certified VoIP Analyst (CVA)
Certified Wireless Analyst (CWA)
Certified Telecommunications Subject Matter Expert (CTSME)

We are open and ready to serve you.
Please feel free contact us at customerservice@teracomtraining.com.

BOOT CAMP Online Live – June 8-12, 2020 – Registration Now Open Worldwide

Now is the time for flexibility and resourcefulness to rise above difficult circumstances.

Nothing beats live, in-person instructor-led training in a classroom environment… except not having to worry about quarantines.

For those working from home, Teracom BOOT CAMP Live Online is the next best thing while we wait for things to get back to a new normal.

  • No travel required.
  • Anyone worldwide can take BOOT CAMP.
  • Live interactive group training.
  • You will be part of a class.
  • You will be able to see and hear everyone else.
  • We’ll ship you the high-quality printed color course books in advance.
  • The instructor will stand up at the front of the room and teach the class like any other BOOT CAMP.
  • The instructor will keep you focused, so you learn, like any other BOOT CAMP.
  • You can ask the instructor questions, like any other BOOT CAMP.
  • The class will run on a schedule: 9 – 5 Monday to Friday, with scheduled breaks, like any other BOOT CAMP.
  • You get immediate access to three TCO Certification Packages, with their online courses.
  • All you need is a laptop with a webcam.

This is an ideal time to get the training you need!

You’ll immediately get the course materials shipped to you: two printed color books totaling over 500 pages with copies of all graphics and detailed text notes.  You will also get immediate access to the included TCO Certification Packages: CTNS, CTA and CVA and all of their online courses.

You’ll get the full BOOT CAMP with our top instructor, as close as you can get without actually being there.

If you are an international participant, this is your opportunity to take BOOT CAMP if you can’t travel to the USA for a public seminar.  No travel visa required!

Upcoming classes:

BOOT CAMP LIVE ONLINE June 8 – June 12  Eastern Time Zone (PDT, GMT-4)

Carpe diem!

Tutorial: Low-Power Wide-Area (LPWA) Radio Networks for the Internet of Things

Low-Power Wide-Area (LPWA) systems, also called Low-Power Wide-Area Networks (LPWANs) are wireless systems for sensor data reporting and remote control.

There are four main technologies, divided into two groups: technologies deployed by mobile (cellular) carriers, and technologies deployed by non-cellular carriers.

The technologies deployed by cellular operators are Narrowband Internet of Things (NB-IoT) and Long Term Evolution category M1 (LTE-M).The technologies deployed by non-cellular operators are sigfox and LoRa (short for Long Range).

Sigfox and LoRa operate in unlicensed spectrum often called Industrial, Scientific and Medical (ISM) bands, at relatively low frequencies. In Europe the 868-MHz band is used; in the US it is 915 MHz; and 923 or 433 MHz in Asia.

Sigfox is a French company that established a base of customers with water meters from the French water authority Veolia and has expanded internationally. It provides the leanest communication service, using 100 Hz of bandwidth to move tiny data packets with payloads of 12 bytes upload and 8 bytes download, with limits on the number of messages per day. The theoretical data rate is 600 bits per second. This reduces the subscription costs and extends battery life. It can support 1 million devices per base station transceiver.

LoRa is a competing technology also using ISM bands, using 125 kHz of bandwidth to achieve a theoretical 50 kb/s and 40,000 devices per base station. LoRa employs spread-spectrum coding, meaning the modem signal is spread over a wider frequency band than normal. This allows better performance in the presence of noise or jamming.
The LoRa Alliance was created to foster interoperability between devices.Cellular carriers offer NB-IoT and LTE-M wireless services in licensed frequency bands.

NB-IoT operates on 200 kHz channels, often in the “guard bands”, i.e. unused spectrum between bands used for conventional cellular, supporting around 200 kb/s data rates depending on carrier implementation.
It is designed for fixed, ultra-narrow-bandwidth IoT applications. It purports to provide better connectivity in subterranean locations such as basements, utility vaults and sensors located deep within buildings. It does not support mobility, i.e. maintaining connection as the sensor moves out of range of a base station.

LTE-M operates on approximately 1 MHz bands on licensed spectrum, supporting up to 1 Mb/s data rates (depending on carrier implementation), as well as voice and mobility.
As the name would suggest, it is intended for existing LTE cellular networks, to provide extended coverage to IoT applications.
Due to its lower latency and higher bandwidth than NB-IoT, LTE-M is suited for IoT applications where devices are in motion and real-time data is required.

The sigfox and LoRa systems gained an early market share. Carrier NB-IoT and LTE-M systems are expected to significantly outpace sigfox and LoRa in terms of connected devices going forward.

Source: Course 130 Voice over IP, SIP, 5G, Security and IoT, pages 9.16 and 9.17