TUTORIAL: Voice over IP – Packet Loss and Sound Samples

Course 2224 Voice Packetization, Codecs and Voice Quality
Course 2224 Voice Packetization, Codecs and Voice Quality

New tutorial: Packet Loss and Sound Samples

How packets get lost, and what it sounds like at the far end.

Click here for the actual lesson from the CVA Certification Package

You can also watch it on YouTube:

How voice packets actually get “lost”.
Hear what it sounds like at the far end.

Here’s a free full lesson including quiz from the new CVA Certification Package for our readers!

This is a lesson on how packets get lost, and what that sounds like, one of ten lessons in Course 2224 “Voice Packetization, Codecs and Voice Quality”
… which is itself one of six courses in the forthcoming TCO Certified VoIP Analyst CVA Course and Certification Package.

Telecom BOOT CAMPs 2019

Telecom BOOT CAMP with 2 TCO Certifications
Telecom BOOT CAMP with 2 TCO Certifications

April 8-12 Denver, CO
May 6-10 Washington, DC
Aug 5-9 Chicago, IL

Live, in-person training, in a seminar where you can ask questions and interact is the best you can get.

Discuss and understand the latest technology and industry news in-class. At lunch, you can discuss your situation with class members, and find out what others are implementing.  Attendees often network and go to dinner together.

Being in a classroom, with an expert instructor, also ensures that you will stay focused, and learn. If you are often distracted at your desk, will you learn much with screen-based training?  Would you learn more out of the office?

Fill in all of the gaps, understand the jargon and buzzwords, build a solid knowledge base, and understand the new technologies with telecom BOOT CAMP.  TCO CTA and CTNS Certifications included.

Specifically designed for non-engineers, Teracom’s renowned telecommunications training seminars are organized into the five‑day telecom BOOT CAMP, covering the full range of knowledge needed in the telecom business… in plain English.

You may register for just the first three days listed as
Course 101: Telecom, Datacom and Networking for Non-Engineers, $1395
or just the last two days, listed as
Course 130: Voice over IP, SIP, Security, 5G and IoT, $995
as best meets your needs. But with the BOOT CAMP price savings, wall-to-wall training and CTA and CTNS Certifications, BOOT CAMP is a great opportunity.

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.  Your knowledge skills, accuracy, productivity and buzzword-frustration level will all be improved with this career-enhancing training.

Telecom BOOT CAMP begins with our famous three-day core training: the PSTN, wireless telecom, data communications, the Cloud, Ethernet and LANs, IP and networking, MPLS, and the Internet as a business.

On Thursday and Friday, we build on this solid foundation with Voice over IP, SIP, SIP Trunking, Security, 5G and IoT, and finish with upcoming technologies: how everything from toasters to self‑driving trucks to human brain implants will be online.

BOOT CAMP is also the preparation course for the prestigious TCO Certified Telecommunications Analyst (CTA) certification.  The CTA Exam with unlimited repeats is included with the tuition fee.  CTNS Online Certification Courses and Exam is also included.

“Excellent across the board”

Helped tie up loose ends; have been working in telecom for the past 4 years with no real training or background.  The instructor was very knowledgeable and enthusiastic about the subject matter, and made the information exciting.
– John Cody, Commercial Communications Manager, US Air Force

Thousands of people have attended Teracom seminars and rated them “excellent”.

Join us!     Register for one of these seminars today:

March 25-29 Toronto, ON
April 8-12 Denver, CO
May 6-10 Washington, DC
August 5-9 Chicago, IL

If you have seven or more people, it is cost-effective to bring us to you:
hold a private “onsite” course for your team.

Get everyone up to the same speed, with a common vocabulary and reference book.  No travel costs!

more info

Tutorial: How SIP Works – and the awesome call disposition features it supports

Here is a ten-minute video tutorial explaining what SIP is, how SIP works and what SIP does… plus a peek at the Future: the awesome call disposition rules that you will be able to set up for incoming calls: where to send a call based on who is calling, where you are, what device you are using, time of day and any other conditions you want to specify.

tutorial on SIP and call setup flow for VoIP

You can also watch this tutorial on YouTube.

SIP and Voice over IP call setup is explained like this in:

• Course 130 Voice over IP, SIP, Security, 5G and IoT (Thursday and Friday of BOOT CAMP )

• DVD-Video Course V10 Understanding VoIP 3 , and

• Telecom 101 textbook .

Video Course Review 2018

Hello Mr.Eric,

I’ve got the DVDs series and would like to express my opinion.

The instructor explains the telecommunication in vertical and horizontal.

Vertically by explaining every subject from its simplest form to its most complex form as a result of developments.

Horizontally by explaining its historical changes as time went by, stage by stage.

The last result is a telecom magical encyclopedia include every aspect in plain language.

I would like to express my extreme recommendation for everyone involve in telecom regardless his position plus whose plan to get telecom service in business or home.

Royal Saudi Air forces Telecoms & IT

Certified Network Defender BOOT CAMP: Toronto Canada March 5-9

New! EC-Council Certified Network Defender
CND BOOT CAMP: Toronto March 5-9

Get your Certified Network Defender training and certification completed and awarded in five days!
– Real instructor and real classmates
– Printed course materials included
– eBook course materials also included
– EC-Council CND exam in-class
– Finish the week with your certification in-hand
– Value pricing: CAD$3295

Compare to others at US$4999 offering inferior “virtual” classes, without printed materials and without the exam pass insurance, and you’ll agree this is a very good deal. Carpe diem!

Get away from distractions at your desk for a week to concentrate and learn with a live, in-person professional instructor and hands‑on labs, interact and network with classmates, write the exam in-class and finish the week with the internationally-recognized CND certification in hand.

more information

Certified Ethical Hacker BOOT CAMP: Vancouver Canada April 9-13

New! EC-Council Certified Ethical Hacker
Get the famous Certified Ethical Hacker Certification completed and awarded in five days!
– Printed course materials included
– eBook course materials also included
– CEHv9 exam in-class
– Finish the week with your certification in-hand
Value pricing: CAD$3495

Compare to US$4995 from other providers, offering inferior online “virtual” classroom, without printed materials, and without exam pass insurance, and you’ll agree this is a very good deal.

Get away from distractions at your desk for a week to concentrate and learn with a professional instructor and hands‑on labs. Interact and network with classmates, write the exam in-class and finish the week with the famous and highly-valuable EC-Council Certified Ethical Hacker credential in-hand.

more information 

Tutorial: 5G Wireless

One place 5G base stations will be deployed is on streetlights

Now that 4G cellular mobile is settled, talk is now turning to 5G.

The first thing to know about 5G is that there are currently no standards, no detailed agreement on what exactly it will be. But we have a number of general indicators to guide the discussion:

1. 5G will employ radio frequencies well above what is currently used for cellular.
The current frequency bands for 3G/4G cellular top out at about 2.6 GHz. Proposals for frequency bands for 5G include “millimeter wave” bands, that is, wavelengths varying between 1 and 10 mm, which correspond to frequencies between about 30 and 300 GHz. No doubt, in the future, there will be unified 5G systems with variations operating in all frequency bands; but the current emphasis is on new technology in the millimeter wave bands.

2. 5G will provide very high bit rates.
With carrier frequencies at 30 GHz and above, very wide frequency bands around those center frequencies can be employed, allowing the radio frequency modems to achieve high numbers of bits per second. In addition, Multiple-Input, Multiple-Output (MIMO) designs can implement massive parallel communications, radically increasing the capacity available to a user. Initial designs and trials have measured 5 Gb/s (5,000 Mb/s). No doubt, this will be pushed beyond 10 Gb/s.

3. Initially, 5G will not be a replacement for 4G.
At millimeter wave frequencies, in-building penetration and refraction around obstacles is poor, and the atmosphere attenuates (diminishes) the signal to the point that line-of-sight between the antennas is necessary, and useful transmission range is measured in the hundreds of meters (yards). This means that the first deployments of 5G will be in environments where base stations can be closely spaced.

One application for all this bandwidth is traffic control: going beyond today’s standalone self-driving vehicles to vehicles communicating with each other and with traffic control systems, with base stations deployed on street lights as suggested by the picture.

We’ll be covering 5G on the last day of BOOT CAMP.

more info

New Course! Fundamentals of Voice over IP

Fundamentals of Voice over IP is a solid introduction to everything Voice over IP.

You’ll learn the fundamental ideas and principles of VoIP and SIP,
as well as all of the jargon and terminology – and what it all means!

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.

Unlimited repeats, no expiry date.
30-day 100% money-back guarantee.

more info

“We like to travel”

“We like to travel”
— seminar attendee during coffee break at a seminar

This reminded us that for many people with good jobs, training is part of the job – including traveling for it… and some people appreciate taking courses in interesting places so they can stay an extra day for a side trip.

In that spirit, here are a couple of outstanding free places to visit close to the Santa Clara BOOT CAMP in March:

1. Pescadero Beach.   google maps
Just over the mountains that separate Silicon Valley from the Pacific Ocean is Pescadero Beach State Park and the Northern California coastline. The best part are the tide pools full of interesting things like anemones.

If you are a good driver,
Pescadero Creek Road is a special experience
google maps navigation

Bonus: drive past Neil Young’s 9-square-mile ranch
he talks about before singing “Old Man”
google maps navigation

2. Redwood forest.   google maps
The Big Basin Redwoods State Park is close by, a wonderful place to walk and regain your zen.