The mobile phone (also called a mobile, wireless, cellular phone, cell phone, or hand phone (hp)) is a short-range, portable electronic device used for mobile voice or data communication over a network of specialized base stations known as cell sites. 

In addition to the standard voice function of a telephone, current mobile phones may support many additional services, and accessories, such as SMS for text messaging, email, packet switching for access to the Internet, gaming, bluetooth, infrared, camera with video recorder and MMS for sending and receiving photos and video. 

Most current mobile phones connect to a cellular network of base stations (cell sites), which is in turn interconnected to the public switched telephone network (PSTN) (the exception is satellite phones). The first mobile phone to enable internet connectivity and wireless email use, was the Nokia Communicator released in 1996 and created a new category of expensive phones called smartphones. In 1999 the first mobile internet service was launched by NTT DoCoMo in Japan under the i-Mode service.