ABCs of Telecommunications

Telefocal Asia ABCs of Telecommunications flagship logo

The telecommunications landscape is in a constant flux of change. For telecommunication professionals, knowledge and competence are vital in this ever-changing industry. This is a basic telecommunications course which runs for 3 days and will provide executives with a fundamental understanding and overview of the modern telecommunications networks that are in operation today.

This course starts by defining and explaining the various components that make up a basic telecommunications system. It highlights the roles of major telecommunications standards bodies such as ITU-T, IEEE, IETF and the MEF. It explains the fundamental technologies that power the telecommunications systems of today. These include electromagnetic signals, multiplexing techniques, various types of switching used at the exchange, signaling technologies and principles, to name a few. It illustrates the 7 layers of the OSI reference model and distinguishes the various types of telecoms networks such as Fixed Network, Mobile Network, Data Network and PSTN, PLMN, Wireless, Satellite, Wireline, MAN, WAN and LAN, and also, the Internet.

It also covers important Wireline and Transmission Technologies such as microwave and fiber optics communications. Above all, it provides participants with a good grasp of Wireless Access Technologies such as WCDMA, HSPA, LTE, LTE-A and 5G. Participants will also learn the basics of Class of Service (CoS), Quality of Service (QoS), Quality of Experience (QoE) in modern LTE network.

The course provides a good exposition of the many technology jargons that are encountered frequently these days, namely, 5G IoT, SDN NFV, Carrier Ethernet and the Cloud and Cloud Services. Radio technologies such as Bluetooth, NFC and Wireless LAN will also be covered.

A flagship course of Telefocal Asia, this basic telecommunication course serves as a refresher course on all things related to telecommunications. Participants will gain critical foundation knowledge before branching out to pursuing other more advanced topics offered by Telefocal Asia.

This course is designed for both technical and non-technical professionals working in the telecommunications industry.

Instructor-led Training
  • Classroom: 3 days
  • LIVE Virtual*: 21 hours


  • A minimum of 6 or more participants are required for a company-based LIVE Virtual course to commence
  • LIVE Virtual courses can be conducted for 5 hours or 7 hours daily. Please note that the number of training days will be extended if you opt for 5 hours daily.
4 – 6 Dec 2023 (Mon – Wed), GMT +08:00
22 – 24 Jan 2024 (Mon – Wed), GMT +08:00
If you are keen on attending the above scheduled course, please register your interest via our course enquiry form.

At the end of this course, participants will:

  • Understand the basics of telecommunications and how they are being used
  • Understand the vital links between wireless and wireline systems
  • Learn about the legacy and future of telecoms including technologies such as HetNet, LTE-A and Cloud Services
  • Piece together the complex puzzle of telecom landscape

Basic Concepts

  1.   Block Diagram of Basic Communication System
  2.   Standard Bodies in Telecommunications
  3.   Electromagnetic Signals
  4.   Multiplexing Techniques
  5.   Switching Types
  6.   Signalling Technologies and Principles
  7.   OSI Reference Model
  8.   Telecom Networks

Wireline and Transmission Technologies

  1.   Transmission Media
  2.   Fixed Broadband Technologies
  3.   Fibre Optics and FTTx
  4.   Data Networking Types and Classifications
  5.   IP
  6.   The Internet
  7.   Voice over IP (VoIP) Technology
  8.   IPTV

Mobility and New Telecommunications Technologies

  1.   The Cellular Network
  2.   3G UMTS and HSPA
  3.   Overview of LTE and 4G Technology
  4.   IMS Overview
  5.   Overview of 5G Technology
  6.   Evolving Mobile Networks
  7.   Telecom Technologies
  8.   Carrier Ethernet
  9.   SDN Data Networking
  10.   Internet of Things (IoT)
  11.   Use Case Study
Note: A Certificate of Completion will only be issued upon achieving at least 75% attendance for the course.


"The technical knowledge of our trainer was excellent and the knowledge that we gained would help us to set a future direction for our company.”
“Contents are comprehensive for a beginner in the Telecommunication industry and I could understand more clearly how wireline and wireless systems work.”
Telekom Malaysia

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