The best in telecom training and certification - since 1992
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Teracom's telecom training courses are designed for the non-engineering professional needing an overview and update, and for those new to the business needing to get up to speed on telecommunications, data communications, 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. It is our goal to bust the buzzwords, demystify the jargon, explain the technologies, the underlying ideas... and how it all fits together.
Based on Teracom's proven instructor-led training courses developed and refined over twenty years, Teracom online courses are top-notch, top-quality and right up to date with the topics and knowledge you need. Get started today!
Core Telecom Training: CTNS Courses
2201
The PSTN
2206
Wireless Telecommunications
2212
OSI Layers and Protocol Stacks
2211
Ethernet, LANs and VLANs
2213
IP Addresses, Packets and Routers
2214
MPLS and Carrier Networks
VoIP and SIP Training: CVA Courses
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
Wireless Training: CWA Courses
2231 Wireless Fundamentals
2232 Mobile Communications
2233 Fixed Wireless: WiFi
100% money-back guarantee
Full refund within 30 days
If for any reason you change your mind during the 30 days after purchase of online telecom training, you can get your money back. You have nothing to lose - and a marketable certification to gain! Get started now!
TCO Certification Packages are sets of courses and exams plus certification at a discounted price.
The exclusive Unlimited Plan gives you unlimited repeats of courses and exams ... which means 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 / Letter of Introduction for your résumé detailing the knowledge your TCO Certification represents and inviting the recipient to contact Teracom for verification. 30-day money-back guarantee.
The CTNS Certification Package includes six courses plus the TCO CTNS Certification Exam, Certificate and Personalized Letter of Reference. 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.
Purchase the courses in this set of six, or individually as best meets your needs.
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Course 2201 The PSTN
Loops and Trunks • POTS • Circuit-Switching • LECs, CLECs and IXCs • Analog • Voiceband • DTMF • SS7
It all begins with Plain Ordinary Telephone Service and the Public Switched Telephone Network. 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.
Course Lessons
1. Introduction
2. History of Telecommunications (USA and Canada)
3. The Public Switched Telephone Network (PSTN)
4. Analog Circuits and Sound
5. The Voiceband
6. Plain Ordinary Telephone Service (POTS)
7. Signaling: Pulse Dialing and Dual Tone Multiple Frequency (DTMF)
8. Signaling System 7 (SS7)
Based on Teracom's famous Course 101, tuned and refined over the course of 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, identify and explain its components and technologies including:
• Loops and trunks, CO, telephone switches and circuit-switching
• Twisted pair, the outside plant, remotes, fiber to the neighborhood
• The founding, breakup and re-emergence of AT&T in the US; Bell & TELUS in Canada
• LECs, IXCs and CLECs
• Plain Ordinary Telephone Service (POTS)
• Analog, the voiceband, how it relates to copper wires, electricity, circuits and sound
• Supervision, dial tone, ringing, lightning protection, tip and ring, -48 volts
• Touch-tone and DTMF
• Basics of SS7 and call routing
Individual Course
with unlimited repeats, Teracom Course Completion Certificate
Certified Telecommunications Network Specialist (CTNS) Certification Package
Six 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
Shop with confidence!
All choices come with a 100% Money-Back Guarantee: full refund within 30 days.
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Course 2206 Wireless Telecommunications
Mobility • Cellular Networks • Internet over Cellular • GSM and TDMA • UMTS and 1X CDMA • LTE • WiFi • Satellite
Wireless Telecommunications is a comprehensive course on wireless, including radio fundamentals, cellular and mobile telecommunications plus WiFi and more.
Course Lessons
1. Introduction
2. Mobile Network Components, Jargon and Basic Operation
3. Cellular Principles and AMPS (1G)
4. 2G: Digital Radio - Voice Communications
5. Digital Cellular: Data Communications
6. Spectrum-Sharing Technologies: FDMA, TDMA, CDMA, OFDM
7. 3G Cellular: CDMA
8. 4G Mobile Cellular: LTE
9. 802.11 Wireless LANs - WiFi
10. Communication Satellites
The objective of this course is to develop a solid understanding of mobile communications networks and technologies.
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.
Most of this course is devoted to mobile communications. We begin with basic concepts and terminology including base stations and transceivers, mobile switches and backhaul, handoffs, cellular radio concepts and digital radio concepts.
Then, we cover spectrum-sharing technologies and their variations in chronological order: GSM/TDMA vs. CDMA for second generation, 1X vs. UMTS CDMA for third generation along with their data-optimized 1XEV-DO and HSPA, how Steve Jobs ended the standards wars with the iPhone and explaining the OFDM spectrum-sharing method of LTE for 4G.
This course is completed with a lesson on WiFi, or more precisely, 802.11 wireless LANs, and a lesson on satellite communications.
You'll gain a solid understanding of the key principles of wireless and mobile networks:
• Coverage, capacity and mobility
• Why cellular radio systems are used
• Mobile network components and operation
• Registration and handoffs
• Digital radio
• "Data" over cellular: Internet access
• Cellular technologies: FDMA, TDMA, CDMA, OFDM
• Generations: 1G, 2G, 3G, 4G
• Systems: GSM, UMTS, 1X, HSPA, LTE
• WiFi, 802.11 wireless LANs
• Satellite communications
Individual Course
with unlimited repeats, Teracom Course Completion Certificate
Certified Telecommunications Network Specialist (CTNS) Certification Package
Six 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
Shop with confidence!
All choices come with a 100% Money-Back Guarantee: full refund within 30 days.
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Course 2212 The OSI Layers and Protocol Stacks
Protocols & Standards • OSI Model • Layers • Protocol Stacks • FedEx Analogy
This course begins the "IP 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
2. Open Systems
3. Protocols and Standards
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.
Build structured, broad knowledge of networks - understanding that lasts a lifetime. Stand out from the crowd!
The objectives of this course are to understand:
• 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
Individual Course
with unlimited repeats, Teracom Course Completion Certificate
Certified Telecommunications Network Specialist (CTNS) Certification Package
Six 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
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.
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Course 2211 Ethernet, LANs and VLANs
MAC Addresses • 802.3 and Ethernet • Broadcast Domains • LAN Cables • Switches • VLANs
Ethernet is the standard method of implementing data links between two machines. What started out as connections between PCs in the office has now spread to Optical Ethernet, used almost universally in the telecom network core, and fiber to the premise.
Course Lessons
1. Introduction
2. Buses, MAC Addresses and Frames
3. Ethernet and 802.3
4. Gigabit and Optical Ethernet
5. LAN Cable Categories
6. Bridging
7. LAN Switches
8. VLANs
Based on Teracom's famous Course 101, tuned and refined over the course of more than 25 years of instructor-led training and counting. We'll cut through the jargon to demystify Ethernet, MAC addresses, LANs and VLANs, explaining the jargon and buzzwords, the underlying ideas, and how it all works together… in plain English.
In this course, we'll examine technologies for connecting machines, called LANs.
Originally, devices were connected to a cable to form a LAN segment. Today, devices are connected to an Ethernet Switch, a.k.a. Layer 2 or LAN switch.
This technology, frames, MAC addresses, broadcast domains and VLANs, migrated from in-building applications to the telecom network. Carriers' networks are today built with point-to-point fiber connecting Layer 2 switches in different buildings.
Fulfilling the goal to use the same technology for access circuits and services as in the core of the network, LAN technology is now used for 40 Gigabit/sec service using Optical Ethernet to large office buildings and 10+ Mb/s fiber-based services to businesses.
On completion of this course, you will be able to explain
• Ethernet and the original bus design
• What a broadcast domain is
• What MAC addresses are
• The access control mechanism
• The IEEE 802 series of standards, 802.2 and 802.3
• Gigabit Ethernet on copper and fiber
• Codes like 100BASE-T
• LAN cables and the TIA-568 cable categories
• LAN switches, also called "Layer 2" switches
• How and why VLANs are used to separate devices
Individual Course
with unlimited repeats, Teracom Course Completion Certificate
Certified Telecommunications Network Specialist (CTNS) Certification Package
Six 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
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.
Click the play button or tap the image to watch the intro lesson in this window.
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Course 2213 IP Addresses, Packets and Routers
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
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
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
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
Six 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
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.
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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
2. Carrier Packet Network Basics
3. Service Level Agreements
4. Virtual Circuits
5. X.25*
6. Frame Relay*
7. TCP/IP over Frame Relay*
8. QoS Requirement for Voice over IP
9. ATM*
10. MPLS
11. TCP/IP over MPLS
12. Differentiated Classes of Service using MPLS
13. Integration and Convergence using MPLS
14. Managing Aggregates of Traffic with MPLS Label Stacking
15. MPLS Services vs. Internet Service
* Lessons on these legacy technologies are optional, included for reference for anyone who needs to know about them. They are not on the final exam. Feel free to skip these lessons.
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
Individual Course
with unlimited repeats, Teracom Course Completion Certificate
Certified Telecommunications Network Specialist (CTNS) Certification Package
Six 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
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.
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.
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 the courses in this set of six, or individually as best meets your needs.
Course Introduction and
Free Lesson: The Big Picture
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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
2. Terminals
3. Voice in Packets
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.
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
Shop with confidence!
All choices come with a money-back guarantee: full refund within 30 days.
Free Course Lesson 3
Internet VoIP to a POTS Line
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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
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.
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
Shop with confidence!
All choices come with a money-back guarantee: full refund within 30 days.
Course & SIP Introduction Lesson
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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
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.
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
Shop with confidence!
All choices come with a money-back guarantee: full refund within 30 days.
Free Course Lesson
Packet Loss and Sound Samples
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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 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
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.
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
Shop with confidence!
All choices come with a money-back guarantee: full refund within 30 days.
Free Course Lesson
Carrier-to-LEC VoIP Interconnect
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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
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.
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
Shop with confidence!
All choices come with a money-back guarantee: full refund within 30 days.
Course Introduction and
Free Lesson: Virtual Circuits
Click the play button or tap the image to watch a free sample lesson in this window.
Tap or click here for full-size lesson as it would be delivered by the Learning Management System.
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
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.
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
Shop with confidence!
All choices come with a money-back guarantee: full refund within 30 days.
The CWA Certification Package includes three courses, CWA Certification Exam, TCO Certificate and Personalized Letter of Reference.
These courses cover the full range of wireless fundamentals, jargon and technologies, giving you the knowledge required in the wireless business today, plus a certificate to prove it!
Purchase the courses in this set of three, or individually as best meets your needs.
Click the play button or tap the image to watch the intro lesson in this window.
Tap or click here for full-size video.
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 Outline
1. Radio Fundamentals
2. Wireless Spectrum and Radio Bands
3. Analog Radio
4. Digital Radio: How Modems Work
5. Propagation, Penetration and Fading
Course Objectives
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.
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
Shop with confidence!
All choices come with a 100% Money-Back Guarantee: full refund within 30 days.
Click the play button or tap the image to watch the intro lesson in this window.
Tap or click here for full-size video.
Course 2232 Mobile Communications
Cellular Principles • Mobility • Handoffs • Digital Voice • Mobile Internet • The Generations: 1G, 2G, 3G, 4G The Technologies: FDMA, TDMA, CDMA, OFDM • The Systems: GSM, 1X, UMTS, HSPA, LTE
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 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.
Course Outline
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
Course Objectives
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,
• How each was deployed for AMPS, GSM, UMTS and LTE
• Explain the difference between what cellphone carriers call "voice" and "data" and
• Mobile internet access.
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
Shop with confidence!
All choices come with a 100% Money-Back Guarantee: full refund within 30 days.
Click the play button or tap the image to watch the intro lesson in this window.
Tap or click here for full-size video.
Course 2233 Fixed Wireless
Wireless LANs • 802.11 Standards • WiFi • Security • Bluetooth • WiMAX • Point-to-Point Microwave • Satellites
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, WiFi, and other current technologies.
We'll start with infrared - remote controls for TVs - then cover Bluetooth.
Next is WiFi, more accurately called 802.11 Wireless LANs. We'll explain how WiFi works and survey the different variations like 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac and more. Then we'll cover the crucial issue of security on WiFi and why you want WPA-2 personal.
We'll cover WiMAX, also known as 802.16, and understand what the future of WiMAX is.
Course Outline
1. Infrared
2. Bluetooth
3. WiFi: Wireless LANs
4. WiFi Security and WPA2
5. 802.16 WiMAX
6. Point-to-Point Microwave
7. Satellite
Course Objectives
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 WiFi and wireless LANs work,
• The relative merits of different flavors of 802.11,
• How WiFi 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.
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
Shop with confidence!
All choices come with a 100% Money-Back Guarantee: full refund within 30 days.
| Teracom Advantages | ||||||||||||||||
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Available CTNS Course Book / Certification 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, 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.
The no-hassle training solution
Teracom's high-quality online courses are delivered in Google Chrome or Puffin browsers on any Windows or mac desktop or laptop, iPad, android tablet or phone with an internet connection... to any number of people, anywhere, anytime. system requirements
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.
