A mobile phone (also called a mobile phone, a cellular phone or a cellular phone) is an electronic device used to dial a mobile phone in a wide geographical area. Mobile phones are different from cordless phones, which only provide telephone services within a limited range of fixed land lines, such as at home or in the office.

Mobile phones can make calls to and receive calls from the public telephone network, which includes other mobile phones and fixed phones all over the world. It does this by connecting to the cellular network owned by the mobile network operator.

Besides being a telephone, modern mobile phones also support many additional services and accessories, such as SMS (or text) messages, e-mail, Internet access, games, Bluetooth and infrared short-range wireless communication, cameras, MMS messages, MP3 players, radios and GPS. Low-end mobile phones are usually called feature phones, while high-end mobile phones that provide more advanced computing power are called smart phones.

The first hand-held mobile phone was demonstrated by Dr. marty cooper of Motorola in 1973 with a mobile phone weighing 2 kg. [1] In 1983, DynaTAC 8000x was the first product listed. During the twenty years from 1990 to 20 10, the number of global mobile phone users increased from12.4 million to more than 4.6 billion, which penetrated into developing economies and reached the bottom of the economic pyramid.