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The mobile phone (also called mobile, cell phone or Handphone) represents the electronic device intended for full duplex of bilateral of telecommunications of radio through a cellular network of base stations, known as base stations. Mobile phones differ from wireless phones which only offer telephone services in a limited range through one base station, are applied to the fixed land line, for example, within the house or office.
The mobile phone allows his users to make and receive phone calls from a telephone system of the general using which turns on other mobile and landline phones worldwide. It does it by a connection way to the cellular network belonging to a mobile network operator. Key feature of a network of cellular communication is that it allows seamless phone calls even if the user moves round extensive territories by means of the process known as transfer.
In addition to phone, modern mobile phones also support a set of additional services, and also accessories, such as Sms, e-mail, Internet access, games, Bluetooth and infra-red port of small range of a wireless communication, the chamber, the MMS message, a MP3 player, radio and GPS. Ordinary cell phones often call mobile phones while high-class phones which offer more advanced computing abilities call smartphones.
The first portable cell phone was shown by Martin Cooper from Motorola in 1973, using phone is powerful 2 kg (4,4 pounds). In 1990, 12,4 million people around the world had cellular communication.
Martin Cooper, the employee of Motorola and executive is considered the inventor of the first practical mobile phone for use in portable settings without a vehicle, after long race against Bell Labs for the first portable mobile phone. Use modern, though some heavy portable phones, Cooper the first call by the mobile phone from April 3, 1973 made it to the rival, doctor Joel S. Engel of Bell Labs.
The first commercially automated network of cellular communication (1G generations) was started in Japan NTT in 1979, originally in the capital district of Tokyo. Within five years, the NTT network it was expanded for the purpose of coverage of all population of Japan and became the first national network 1G. In 1981, it followed simultaneous start of Nordic Mobile Telephone (NMT) of system in Denmark, Finland, Norway and Sweden. NMT was the first network of mobile communication, thanks to the international roaming. The first 1G the network was started in the USA the Chicago Ameritech in 1983 use of Motorola DynaTAC of the mobile phone. A number of the countries, follows in the early eighties including Great Britain, Mexico and Canada.
The first "modern" network technologies on digital 2G (the second generation) cellular technology Radiolinja (now a part of Elisa Group was begun
