It is a device that allows you to communicate via either voice, by visual means (data), or both. A telecommunication device can be a lot of things. Here is a quick little list of some telecommunication devices.
Cell Phone
Telephone
Computer
Radio
Television Set
Walkie Talkie
CB Radio
Modem
Router
Multiplex Switch
Server
Personal Communications Devices was created in 1984.
That's a network.
a physical hardware linka communication protocol definition
Computer-mediated communication (CMC) is defined as any human communication that occurs through the use of two or more electronic devices.
The five components of a computer:input devices, output devices,system unit,storage devices,and communications devices.
Gus Communications Devices Incorporated sells many items with people with medical conditions. They sell devices for people with strokes or people who have cancer of the throat or any part of the throat who have trouble speaking.
A dedicated link between devices
Networking
That is called a network.
Communications activities and capabilites
Dedicated
'techniques' 'tricks'