Telecommunications is communication using electronic equipment such as telephones, computer modems, satellites, and fiber optic cables. Telecommunication systems include telecommunications cables from the subscriber to local switches (local lines), switching facilities that provide a communication connection with the subscriber, with lines or channels that transfer calls between the switches and, of course, the subscriber. In the period from the beginning...
Russian
French
Spanish
Portuguese
Deutsch
Turkish
Dutch
Italiano
Arabic
Romaian
Portuguese (Brazil)
Greek
