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A mobile phone (also known as a cellular phone, cell phone, hand phone, or simply a phone) is a phone that can make and receive telephone calls over a radio link while moving around a wide geographic area. It does so by connecting to a cellular network provided by a mobile phone operator, ALLOWING access to the public telephone network. By contrast, a cordless telephone is used only WITHINthe short range of a single, private base station. In addition to telephony, modern mobile phones also support a wide variety of other services such as text messaging, MMS, email, Internet access, short-range wireless communications (infrared, Bluetooth), business APPLICATIONS, gaming, and photography. Mobile phones that offer these and more general computing capabilities are referred to as smartphones.