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What is Telecommunications?

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Telecommunications, or telecom, is an industry that provides services for voice and data communication.


Telecom began with the emergence of data transmission networks based on telegrams as early as the late 1830s. Throughout most of the 20th century, telephone networks were the dominant form of communications and telecom companies sprang up in practical every nation on the planet to offer telephone services. In the 1980s, cable television and mobile voice networks were introduced in most markets. With the commercialization of the internet in the mid-1990s, the telecom industry began to shift to data services such as internet access, fiber optic networks and mobile data.

Typical Services

Modern telecommunication services often include telephone, mobile voice, mobile data, WiFi services, cable TV, fiber optic networks, internet access, network services, satellite communications, data centers, software and IT services. Telecommunications firms tend to generate significant cash flows and commonly invest in content such as television networks, video on demand and internet content. It is common for telecom companies to view their future as being in content and media.
Overview: Telecommunications
An industry that provides services related to the communication of voice and data.
Related Concepts
Next: Telecom Services


This is the complete list of articles we have written about telecom.
Dedicated Line
Last Mile
Managed Services
Meet-me Room
Overlay Network
Optical Fiber
Point Of Presence
Service Provisioning
Wide Area Network
More ...
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A list of common telecom services.

Internet Exchange Point

An overview of internet exchange point.

Point Of Presence

An definition of point of presence with several common examples.

Overlay Network

Building networks on top of networks for security and privacy.

Service Provisioning

A definition of service provisioning with examples.

Managed Services

The common types of managed service.

Digital Infrastructure

A definition of digital infrastructure with common examples.

Dedicated Line

A definition of dedicated line with examples.

Communications Industry

The definition of the communications industry with examples.

Net Neutrality

A definition of net neutrality.


A list of networking techniques and concepts.

Internet Backbone

An overview of internet backbones.


A definition of peer-to-peer with a technical overview and example.


A definition of tarpit with examples.

Proxy Server

A definition of proxy server with common examples.


An overview of microtrenching.

Proximity Awareness

The definition of proximity awareness with examples.

Optical Fiber

A list of optical fiber applications.

Near Field Communication

A definition of near field communication with examples.
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