As its name implies, a telecommunication system is first a communication system, that is, a system to transmit information from one location to another. And secondly, a system that allows you to transmit information from locations with a considerable distance between them. That’s what the prefix tele means in greek = distant.

As in any communication system, it’s composed by 3 parts:

• The transmitter
• The channel
• The receiver

and it can be analog and digital.