Choose your language
Telecommunication Course
More than 2 million students worldwide

Telecommunication Course

4,1

Master the full spectrum of telecommunications technology, from physical signal transmission to 5G wireless networks and VoIP systems. This course gives you the technical depth and practical knowledge employers demand in today's telecom industry. Whether you're entering the field or advancing your career, you'll graduate with skills you can apply immediately.

Dedika for businesses

What you will learn:

This course covers every critical layer of modern telecommunications, starting with signal theory and transmission media, then moving through network protocols, switching architectures, and cellular technologies. You will study broadband access technologies including DSL, fibre, and cable, alongside VoIP, SIP, and unified communications systems. Security frameworks, network management, and regulatory compliance are also addressed in detail. Supplementary content introduces SDN, NFV, IoT connectivity, satellite networks, and data analytics for telecom operations. By the end, you will have a comprehensive, job-ready understanding of how modern telecom networks are built, managed, and secured.

How you study in practice Telecommunication Course

How you practise Telecommunication Course

For companies looking to train their teams

With Dedika for businesses, the course includes exercises and examples tailored to your company and its specific needs.

Click here

Course content

8 Chapters • 39 LessonsDuration between 4 and 360 hours (you decide)

Chapter 1See details

Foundations of Telecommunications

  • Lesson 1 • Core Terminology and Concepts

    Defines bandwidth, latency, frequency, and modulation as foundational vocabulary. Enables precise communication throughout the course.

  • Lesson 2 • Signal Types and Transmission Basics

    Distinguishes analog from digital signals and explains encoding methods. Prepares students to analyse transmission quality and degradation.

  • Lesson 3 • Telecom System Architecture Overview

    Maps the end-to-end structure of a telecom system from user device to core network. Provides a mental model for all subsequent technical chapters.

  • Lesson 4 • History and Evolution of Telecom

    Traces telecom from telegraph to 5G, establishing context for modern systems. Grounds subsequent technical study in real-world development milestones.

Chapter 2See details

Transmission Media and Physical Layer

  • Lesson 1 • Physical Layer Standards and Interfaces

    Reviews electrical and optical interface standards governing physical connections. Ensures students can interpret specifications and ensure interoperability.

  • Lesson 2 • Fibre Optic Transmission

    Explains light propagation, fibre types, and connector standards for high-capacity links. Establishes fibre as the backbone of modern broadband networks.

  • Lesson 3 • Media Selection and Link Budgeting

    Applies media knowledge to calculate link budgets and justify media choices. Bridges physical theory to practical network planning decisions.

  • Lesson 4 • Copper-Based Transmission Media

    Covers twisted pair and coaxial cable properties, performance limits, and use cases. Connects physical characteristics to real deployment decisions.

  • Lesson 5 • Wireless Transmission Fundamentals

    Introduces radio frequency propagation, spectrum allocation, and antenna theory. Links physical wireless behaviour to network design constraints.

Chapter 3See details

Network Protocols and Layered Models

  • Lesson 1 • TCP/IP Protocol Suite

    Details IP addressing, TCP, UDP, and ICMP as the operational internet protocol stack. Connects OSI theory to the protocols running real telecom networks.

  • Lesson 2 • Quality of Service Mechanisms

    Introduces traffic classification, queuing, and policing to prioritise telecom traffic. Directly supports voice, video, and data coexistence on shared networks.

  • Lesson 3 • OSI Reference Model Deep Dive

    Breaks down all seven OSI layers with functions, data units, and examples. Provides the analytical framework used throughout protocol study.

  • Lesson 4 • Data Link and Access Protocols

    Examines Ethernet, PPP, and MAC-layer protocols controlling shared medium access. Explains how devices share and arbitrate physical transmission resources.

  • Lesson 5 • Routing and Switching Protocols

    Covers OSPF, BGP, and spanning tree as mechanisms for path selection and loop prevention. Enables students to configure and troubleshoot routing decisions.

Chapter 4See details

Switching, Multiplexing, and Circuit Design

  • Lesson 1 • Circuit Switching Principles

    Explains dedicated path establishment, teardown, and PSTN architecture. Provides historical and technical context for modern packet network comparisons.

  • Lesson 2 • Frequency and Code Division Multiplexing

    Covers FDM, OFDM, and CDMA as spectrum-sharing techniques for wireless and wired systems. Prepares students for cellular and broadband access design.

  • Lesson 3 • Traffic Engineering and Capacity Planning

    Applies Erlang models and traffic matrices to size circuits and packet links. Translates theoretical switching knowledge into practical network dimensioning.

  • Lesson 4 • Packet Switching and Routing

    Contrasts store-and-forward with cut-through switching and explains packet queuing. Establishes packet networks as the dominant modern telecom paradigm.

  • Lesson 5 • Time-Division Multiplexing

    Details TDM framing, T1/E1 hierarchies, and synchronisation requirements. Connects legacy TDM infrastructure to modern carrier transport networks.

Chapter 5See details

Wireless and Cellular Network Technologies

  • Lesson 1 • 2G and 3G Radio Access Technologies

    Reviews GSM, GPRS, UMTS, and HSPA as evolutionary steps in mobile data capability. Contextualises legacy networks still supporting IoT and voice services.

  • Lesson 2 • Cellular Network Architecture

    Describes cells, base stations, and core network elements supporting mobile subscribers. Establishes the structural foundation for all cellular technology generations.

  • Lesson 3 • 5G Architecture and Use Cases

    Explains 5G NR, network slicing, and massive MIMO for eMBB, URLLC, and mMTC scenarios. Positions 5G as the platform for next-generation telecom services.

  • Lesson 4 • LTE and 4G Network Design

    Details LTE air interface, EPC architecture, and MIMO antenna techniques. Provides the technical baseline for understanding 5G enhancements.

  • Lesson 5 • Wireless Network Planning and Optimisation

    Applies coverage, capacity, and interference models to site planning and KPI optimisation. Enables students to conduct RF planning and performance tuning.

Chapter 6See details

Voice over IP and Unified Communications

  • Lesson 1 • VoIP Fundamentals and Codecs

    Explains digitisation, packetisation, and codec trade-offs for voice quality and bandwidth. Establishes the technical basis for all VoIP system design decisions.

  • Lesson 2 • Unified Communications Integration

    Integrates voice, video, messaging, and presence into a unified platform architecture. Demonstrates how UC platforms enhance enterprise productivity and collaboration.

  • Lesson 3 • IP PBX and Call Control Platforms

    Reviews IP PBX architecture, dial plans, and feature sets for enterprise telephony. Prepares students to deploy and manage business communication systems.

  • Lesson 4 • SIP Signaling Protocol

    Details SIP message structure, call flows, and registration for session establishment. Enables students to configure and debug SIP-based voice systems.

  • Lesson 5 • RTP and Media Transport

    Covers RTP, RTCP, and SRTP for real-time media delivery and quality monitoring. Links transport protocols to voice quality outcomes in live networks.

Chapter 7See details

Broadband Access and Transport Networks

  • Lesson 1 • Broadband Network Management and SLAs

    Applies monitoring, provisioning, and SLA enforcement to broadband access operations. Enables students to manage subscriber experience and meet service commitments.

  • Lesson 2 • DSL Technologies and Architectures

    Covers ADSL, VDSL, and vectoring as copper-based broadband access solutions. Connects loop characteristics to achievable throughput and deployment range.

  • Lesson 3 • Fibre-to-the-Premises Technologies

    Details GPON, XGS-PON, and active Ethernet architectures for fibre access networks. Establishes FTTP as the long-term broadband infrastructure standard.

  • Lesson 4 • Cable and HFC Network Design

    Explains hybrid fibre-coax topology, DOCSIS standards, and upstream/downstream channel plans. Positions cable as a high-capacity broadband access platform.

  • Lesson 5 • Metro Ethernet and Carrier Transport

    Reviews Carrier Ethernet services, MEF standards, and MPLS-based transport for metro networks. Connects access technologies to the wider carrier transport infrastructure.

Chapter 8See details

Telecom Network Security and Management

  • Lesson 1 • Regulatory Compliance and Lawful Intercept

    Addresses lawful intercept obligations, data retention requirements, and compliance frameworks. Prepares students to implement compliant telecom operations without legal exposure.

  • Lesson 2 • Firewalls, SBCs, and Access Control

    Explains session border controllers, stateful firewalls, and ACLs as perimeter defences. Enables students to design layered access control for telecom environments.

  • Lesson 3 • Network Management Systems and FCAPS

    Applies the FCAPS model to fault, configuration, accounting, performance, and security management. Structures operational management practices for carrier-grade networks.

  • Lesson 4 • Telecom Threat Landscape

    Identifies signaling attacks, toll fraud, DDoS, and eavesdropping as primary telecom threats. Motivates security architecture decisions covered in subsequent sections.

  • Lesson 5 • Encryption and Authentication in Telecom

    Covers TLS, IPsec, SRTP, and SIM-based authentication for securing telecom data and signaling. Provides the cryptographic toolkit for protecting network communications.

Certification

Your valid completion certificate

This course is for you:

  • Network technician: ready to move into telecom-specific infrastructure roles.

  • IT support professional: building deeper knowledge of carrier-grade network systems.

  • Career changer: coming from a non-technical field with strong motivation to learn.

  • Electrical engineering student: seeking applied context for signal and transmission theory.

  • Telecom sales engineer: needing stronger technical grounding to support client conversations.

  • System integrator: working on projects that touch cellular, VoIP, or broadband platforms.

What our students say

Your lessons are perfect. I purchased the one-year package and finally have the opportunity to follow various topics of interest without needing to change platforms... I'm grateful for everything you do, I've already recommended you to other people...
Giulio Carlo
Giulio CarloDigital Marketing Student
I like how the lessons are straight to the point and how I can change chapters and skip content I don't need.
Mariana Ferres
Mariana FerresPhotography Student
I like the content and the way videos are presented and transcribed, which speeds up the process!
Luciana Alvarenga
Luciana AlvarengaNail Design Student
The platform is fast, simple to use. The diversity of content and complementary videos really help with learning.
André Felipe
André FelipePrompt Engineering Student

Top qualifications

FAQ

Who is Dedika?

Is the certificate valid in South Africa?

Are the courses free?

What is the course workload?

What are the courses like?

How do the courses work?

What is the duration of the courses?

What is the cost or price of the courses?

What is an EAD or online course and how does it work?

PDF Course