High-Quality Online Telecommunications Training Courses

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High-quality courses covering the core knowledge
you need in the telecommunications business today:
  checkmark POTS and The PSTN
  checkmark Wireless Telecommunications
  checkmark The OSI Layers and Protocol Stacks
  checkmark Ethernet, LANs and VLANs
  checkmark IP Networks, Routers and Addresses
  checkmark MPLS and Carrier Networks
Special Offer: All Six Courses Plus Certification go to CTNS Telecommunications Certification
Certified Telecommunications Network Specialist
Six courses plus TCO Certification - 25% savings
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Based on Teracom's proven training used by hundreds of telecom companies and major organizations, you will benefit from decades of knowledge, insight and experience distilled into clear lessons, logically organized to build one concept on another.
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Career-enhancing knowledge
This training and certification is an ideal way to implement a major career-enhancing upgrade to your existing knowledge,
or to prepare for a job in the telecommunications business.
Team training
This set of courses is also 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.
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.
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Course Overviews
Like Teracom's famous instructor-led training seminar Course 101 "Telecom, Datacom and Networking for Non-Engineers", our very popular DVD-Video course library and the Telecom 101 textbook, the online course list begins with the Public Switched Telephone Network then Wireless Telecommunications and followed by four courses on IP telecommunications.
Course L2101 POTS and the PSTN
POTS and the PSTN - course introductionduction Lesson
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 course, you will be able to draw a model of the PSTN, identify all of its components and technologies from voiceband analog to fiber to the neighborhood, and explain the characteristics and operation of POTS.
Course L2106 Wireless Telecommunications.
Course L2106: Wireless Telecommunications - Introduction
In many parts of the world, particularly outside the US, Canada and Western Europe, the physical telephone network is wireless, since deploying radio transceivers is far cheaper than embarking on a new project to pull copper wires and/or fiber to every residence.
Most of this course is devoted to mobile wireless telecommunications. 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.
On completion, 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, and explain the characteristics and operation of FDMA, TDMA, CDMA and OFDMA, and how each was deployed for AMPS, GSM, UMTS and LTE. You will also be able to explain WiFi, the frequencies used and the different 802.11 standards, and the similarities and differences between LEO and GEO satellites.
Course L2112 The OSI Layers and Protocol Stacks
Course L2112 The OSI Layers and Protocol Stacks
The OSI Layers and Protocol Stacks establishes a framework for all of the subsequent discussions: the OSI 7-Layer Reference Model, which identifies and divides the functions to be performed into groups called layers. This framework is required to sort out the many functions that need to be performed, and to be able to discuss separate issues separately.
First, we'll define the term "protocol" and compare that to a standard. Then we'll define "layer" and how a layered architecture operates, and provide an overview of the name, purpose and function of each of the seven layers in the OSI model.
Then, we'll go back through the story more slowly, with one lesson for each of the layers, examining in greater detail the functions that have to be performed and giving examples of protocols and how and where they are used to implement particular layers.
The result is a protocol stack, one protocol on top of another on top of another to fulfill all of the required functions. To make this more understandable, this course ends with the famous FedEx Analogy illustrating the concepts using company-to-company communications, and an analogy of Babushka dolls to illustrate how the protocol headers are nested at the bits level.
On completion of this course, you will be able to define a protocol and differentiate that from a standard, explain why a layered architecture is required, list the seven layers of the OSI model, the name, purpose and functions of each one, and explain how a protocol stack operates and where the protocol headers are located.
Course L2111 Ethernet, LANs and VLANs – which could also be titled "Layer 2".
Course L2111 Ethernet, LANs and VLANs
As we will have established in the previous course, Layer 2 is all about communications between two devices that are on the same circuit, or more precisely, in the same broadcast domain. It turns out that this is implemented by moving frames with link addresses over physical connections following the 802 series of standards, colloquially referred to as Ethernet, MAC frames and MAC addresses.
We'll begin with the original LAN: Ethernet and its bus topology, defining "broadcast domain" and explaining its fundamental operation and characteristics: CSMA-CD access control, MAC addresses and MAC frames.
Then we'll cover the IEEE 802 standards and the evolution of Ethernet from 10BASE-T to Gig-E, LAN cables and the TIA-568 cable categories, basic cabling design; what "bridging" means and how a LAN switch works.
 
This course is completed with the important concept of VLANs: defining broadcast domains in software, a key part of basic network security practice.
On completion, you will be able to define a broadcast domain, explain Ethernet and the 802 standards, MAC addresses, LANs and VLANs, the jargon and buzzwords, the underlying ideas, and how it all works together to move data between two devices in the same broadcast domain.
Course L2113 IP Networks, Routers and Addresses – which could also be titled "Layer 3".
Course L2113 IP Networks, Routers and Addresses
This is a comprehensive course on Layer 3 of the OSI Model, concentrating on IP addresses, routers and packets. We begin with the two basic principles of packet networks: bandwidth on demand, also known as overbooking or statistical multiplexing; and packet-switching, also known as packet forwarding or routing.
We'll understand what routers do and where they are located, routing tables and the basic operation of a router and the standard strategy deploying an edge router between the LANs and the WAN at each location.
Then we'll cover IP version 4: address classes and how they are assigned to Regional Internet Registries then ISPs then end-users, dotted-decimal notation, static addresses, dynamic addresses and DHCP, public addresses, private addresses and NAT.
The course concludes with IPv6: the IPv6 packet and changes from IPv4, IPv6 address allocations and assignments and end up understanding how IPv6 subnets will be assigned to broadcast domains and 18 billion billion addresses per residence.
On completion of this course, you will be able to define bandwidth on demand and its advantages, what a router does, the basic structure of a routing table, where routers are located, define the IPv4 address structure and dotted-decimal notation, explain how both static and dynamic addresses are assigned using DHCP, what private addresses are and how they are interfaced to the public IP network, and the structure, allocation and assignment of IPv6 addresses.
Course L2114 MPLS and Carrier Networks.
Course L2114 MPLS and Carrier Networks
This is an extensive and comprehensive course devoted to the structure, components and operation of carrier packet networks and services, how they are implemented, packaged and marketed, and how they are used by government, business and other carriers.
The IP packets and routing of the previous course is one part of the story. Performance guarantees, and methods for quality of service, traffic management, aggregation and integration is another big part of the story, particularly once we leave the lab and venture into the real world and the business of telecommunications services.
We'll begin by establishing a basic model for a customer obtaining service from a provider, defining Customer Edge, Provider Edge, access and core, and a Service Level Agreement: traffic profile vs. transmission characteristics.
Next, we'll understand virtual circuits, a powerful tool used for traffic management and variations like connection-oriented vs. connectionless communications and reliable vs. unreliable network services.
With the fundamentals in place, we will survey the different technologies used to implement this in practice: Frame Relay, ATM and MPLS, explaining the equipment, jargon and principles of operation, and the advantages each technology has over the previous. In particular, we'll understand the big advantage of MPLS over Frame Relay in the user-network interface.
Once we've covered all of the components of an MPLS network and its operation, we'll see how MPLS is used to implement Diff-Serv, i.e. different classes of service, how MPLS is used to implement integration or "convergence" of services onto a single network service, and how MPLS is used to aggregate traffic for management.
The course is completed with a lesson on "MPLS service", and how that compares to Internet service.
On completion of this course, you will be able to draw a model for a service provider's network, define the terms Customer Edge and Provider Edge, explain what a traffic profile is and how that relates to a Service Level Agreement, how Frame Relay got its name, what ATM is and why it is on the way out, the purpose, components, terminology and operation of MPLS, and how MPLS can be used to implement integration or convergence, aggregation and differentiated classes of service – what people mean when they say "MPLS service" and its pros and cons compared to Internet service.
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