Boot Camp Santa Clara, California

Have you been waiting for an In-Person Telecommunications course on the west coast?
Your wait is over!

Telecom Boot Camp – Apr 3-7 2023 Santa Clara, California.

Course 101 Apr 3-5 2023
Course 130 Apr 6-7 2023
Which should you take?

Registration is now open.

We look forward to seeing you there!

Boot Camp 2023

Plan your training for the new year now!

BOOT CAMP Live Online – Feb 6-10 2023
BOOT CAMP In-Person Washington DC – March 6-10 2023

BOOT CAMP Live Online, also called a virtual telecom course, has been so well received, what we thought was a temporary solution for the pandemic is scheduled on an ongoing basis.

Advantages which are budget-friendly and appreciated by management like:
Significant cost savings
High-quality color course books shipped directly to students
Get dispersed team members up to a common speed
Well-suited to work from home
No travel costs
Online courses and certifications included

Boot Camp In-Person
Time for a change of scenery and career-enhancing training!
Live, in-person, in-classroom training is the gold standard in training: the best you can get.
Attendees often network, and go out to lunch together.
Stretch your legs in the evening with a stroll along the reflecting pool, or checking out the scene of the crimes at the Capitol!

Free Tutorial: Mobile Network Operators, MVNOs & Roaming

Enjoy this free Tutorial from the
Certified Wireless Analyst Certification package
Course 2232 Mobile Communications
Lesson 7 Mobile Network Operators, MVNOs & Roaming

Course 2232 Mobile Communications is the second course in the CWA Certification Package covering mobile communications from A to Z.
This is where the money is!

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

Expand your knowledge. Start today!

Next Boot Camp Courses

BOOT CAMP In-Person
Washington DC January 23-27 2023

Time for a change of scenery and career-enhancing training!  

Live, in-person, in-classroom training is the gold standard in training: the best you can get.

Attendees often network, and go out to lunch together.

Stretch your legs in the evening with a stroll along the reflecting pool, or checking out the scene of the crimes at the Capitol!

Here’s a copy-and-paste training request letter.

BOOT CAMP Live Online
December 5-9 2022

BOOT CAMP Live Online, also called a virtual telecom course, has been so well received, what we thought was a temporary solution for the pandemic is scheduled on an ongoing basis.

Advantages like:

  • Significant cost savings
  • High-quality color course books shipped directly to students
  • Get dispersed team members up to a common speed
  • Well-suited to work from home
  • No travel costs
  • Online courses and certifications included

are budget-friendly and appreciated by management.


Here is a cut-and-paste training request form to send to your boss!

New release of CVA Study Guide

TCO CVA Certified VoIP Analyst Study Guide

New up-to-date version released July 2022.

Available from Amazon in hard cover, soft cover or ebook.

Printed in color!

Certification study guide and companion reference textbook for the TCO Certified VoIP Analyst (CVA) courses and exams. The CVA Study Guide corresponds directly to the CVA online courses and exams. For each lesson, detailed text notes are provided along with the main graphic.

Many people find they learn better with a companion book.

Get your copy today!

Next Boot Camp In-Person

Boot Camp In-Person
Washington, DC Oct 24-28, 2022

The August Boot Camp In-Person class was full.

Reserve your spot for October now and don’t miss out on the opportunity to be face-to-face with your instructor.

The best telecommunications training you can get: ask questions and interact.

From the fundamentals to latest technologies, Boot Camp is specifically designed for non-engineers.

“Awesome course, really. Just very, very good.” – Tim Wilson, Ciena

Read more testimonies.

Next BOOT CAMP Live Online September 26-30

  ✓ Guaranteed to Run

BOOT CAMP Live Online has been so well received, what we thought was a temporary solution for the pandemic is scheduled on an ongoing basis.

Advantages like:

  • Significant cost savings
  • High-quality color course books shipped directly to students
  • Get dispersed team members up to a common speed
  • Well-suited to work from home
  • No travel costs

Online courses and certifications included are budget-friendly and appreciated by management.
Here is a cut-and-paste training request form to send to your boss!

Tutorial: Network Core Nodes

Section 10.6.4 of Telecom 101: Sixth Edition 2022

A carrier’s network core, colloquially referred to as their backbone, provides high-capacity, high-availability connections, notionally between cities.

The connections can be between Central Offices, wire centers, toll centers, other switching centers, CATV head ends, Mobile Telephone Switching Offices, Internet Exchanges and/or data centers.

Fiber optics is used as the basis of the connections since it can support very high numbers of bits per second. Lower-speed (and lower-cost) circuits are used to provide access to this core to users.

FIGURE 121 NETWORK CORE NODE

At the end of each fiber that makes up the network core is a router. The router is sometimes called a network node, after the French word for knot. In some cases, the entire building housing this router is called a node.

A knot, because in addition to connecting core fibers to other cities, the many local access fibers to buildings, neighborhoods, cell sites and everything else are also connected to the core at this node.

Figure 121 provides a closer look at the architecture of a core network node.

DWDM (Section 10.4) is used on core fibers to increase the capacity connecting routers in different cities to bit rates measured in the Terabits per second.

A gateway router is placed as a point of traffic control between access circuits on the right and the core router on the left. This gateway router also implements MPLS (Chapter 17), which is used to manage capacity on the network circuits.

Terminating a physical fiber means plugging it into an Optical Ethernet SFP transceiver inserted in a hardware port in a rack-mount device.

Routers are built with a relatively small number of hardware ports between which they can relay packets at line speed. Some of these ports would terminate core fibers, and others terminate connections to aggregation devices for access fibers via that node’s gateway router as illustrated in Figure 121.

Layer 2 switches (Section 15.4) with up to hundreds of Optical Ethernet hardware ports each are used to terminate the access fibers, which can number in the thousands.

Layer 2 switches are also data concentration or aggregation devices, interspersing traffic from all of the access circuits into high-speed streams to feed to the router. Everything works in both directions at the same time.

Layer 2 switches also implement VLANs (Section 15.5), a critical tool for segregating different users on the same access fibers in cooperation with additional Layer 2 switches connected downstream, as described in the next section.

– – –

This is one small piece of Telecom 101.

Join thousands of satisfied customers, and get the entire book today!

CWA Study Guide 2nd Edition

Available in Softcover, Hardcover and eBook.

The CWA Study Guide is an essential enhancement to the TCO Certified Wireless Analyst Certification Package.

The CWA Study Guide contains detailed notes and graphics corresponding exactly to the CWA lessons.

This book therefore contains all of the answers to the CWA exam questions!

Having a companion reference textbook avoids the need to take notes, and greatly enhances learning and retention, helping you learn and burn the concepts into the neurons of your brain.

The book is invaluable as a printed companion to online courses, and can also be used for self-learning without online courses.

In both cases, it will serve as an excellent day-to-day reference and handbook.

Get your CWA Study Guide Today!

Tutorial: Wireless Spectrum and Radio Bands

Lesson 3 of CWA Course 2231 Wireless Fundamentals
20 minutes running time.

Every country has the sovereign right to manage energy at radio frequencies in its territory. When the airspace through which the radio waves travel is public property (which is most of the time), and there is contention for its use (which is all of the time), regulation is required to allow the rational use of the shared resource.



The range of radio frequencies, called the radio spectrum, is divided into blocks of frequencies allocated for different services. Allocations are divided into allotments, which are bands of frequencies assigned to specific users or to the public. A license to emit radio-frequency energy at the specified frequencies in a specified area is issued by government to record the assignment of the allotment and the conditions for its use.

… these lesson notes continue on page 19 of the CWA Study Guide.