Mobile phone

A mobile phone is a telephone that can make and receive calls over a radio frequency carrier while the user is moving within a telephone service area. The radio frequency link establishes a connection to the switching systems of a mobile phone operator, which provides access to the public switched telephone network (PSTN). Most modern mobile telephone services use a cellular network architecture, and therefore mobile telephones are often also called cellular telephones or cell phones. In addition to telephony, modern mobile phones support a 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 which offer these and more general computing capabilities are referred to as smartphones.

The first handheld mobile phone was demonstrated by John F. Mitchell and Martin Cooper of Motorola in 1973, using a handset weighing c. 4.4 lbs (2 kg). In 1983, the DynaTAC 8000x was the first commercially available handheld mobile phone. From 1983 to 2014, worldwide mobile phone subscriptions grew to over seven billion, penetrating 100% of the global population and reaching the bottom of the economic pyramid. In 2014, the top mobile phone manufacturers were Samsung, Nokia, Apple, and LG.

Cell Phone (film)

Cell Phone (simplified Chinese: 手机; traditional Chinese: 手機; pinyin: shŏujī) is an award-winning Chinese comedy-drama film directed by Feng Xiaogang and starring Ge You, Zhang Guoli, Xu Fan and Fan Bingbing. It was first released on 18 December 2003 in Mainland China and was subsequently screened at the Cleveland International Film Festival on 18 March 2005. With box office earnings of over ¥50 million, Cell Phone became the best-selling domestic film in 2003.

Written by Liu Zhenyun, based on his own novel of the same title, the film revolves around two successful men whose marriages were wrecked when their wives uncovered their extramarital affairs through traces left in their cell phones. More broadly, the film explores the role of cellphones in interpersonal relationships in modern China, where the rapid development in information technology is having huge impacts on the way people communicate.

Plot

Yan Shouyi is a TV host who has an affair with Wu Yue (Fan Bingbing), a young and attractive woman working in publishing. Yan diligently erases all text messages and call records between him and Wu on his cellphone before he gets home everyday, in order to avoid detection by his wife Yu Wenjuan (Lu Zhang). One night, after telling Yu that he has a work meeting with Fei Mo (Zhang Guoli), a TV producer and Yan's superior, Yan rendezvous with Wu and switches off his cellphone. Not being able to reach Yan a while later, Yu calls Fei, who has been in the know of Yan's affair.