Mobile phone
hideA mobile phone or mobile (also called cellphone and handphone, as well as cell phone, wireless phone, cellular phone, cell, cellular telephone, mobile telephone or cell telephone) is a long-range, 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 mobile phone, 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, MP3 player, radio and GPS. Most current mobile phones connect to a cellular network consisting of switching points and base stations (cell sites) owned by a mobile network operator (the exception is satellite phones, which are mobile but not cellular).
As opposed to a radio telephone, a mobile phone offers full duplex communication, automatised calling to and paging from a public switched telephone network (PSTN), handoff (am. English) or handover (European term) during a phone call when the user moves from one cell (base station coverage area) to another. A mobile phone offers wide area service, and should not be confused with a cordless telephone, which also is a wireless phone, but only offer telephony service within a limited range, e.g. within a home or an office, through a fixed line and a base station owned by the subscriber.
The International Telecommunication Union estimated that mobile cellular subscriptions worldwide would reach approximately 4.1 billion by the end of 2008. Mobile phones have gained increased importance in the sector of Information and communication technologies for development in the 2000s and have effectively started to reach the bottom of the economic pyramid.
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News tagged with mobile phone
Google tests new phone to profit from mobile Web
Electronics / Consumer & Gadgets
Dec 14, 2009 |
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(AP) -- Google Inc. is determined to gain more influence over how the Web is used on mobile phones, even if the next step in the quest tramples some of the relationships forged during its two-year expansion ...
Neuroscience in the driving seat
Medicine & Health / Neuroscience
Dec 11, 2009 |
5 / 5 (2) |
0
It emerged today that more drivers are using hand-held mobile phones than two years ago, despite the introduction of tougher penalties. The Transport Research Laboratory is worried because phone-using drivers ...
Taiwan unveils super-tiny microchip
Dec 16, 2009 |
4.8 / 5 (4) |
1
Taiwan has developed tiny microchips that could lead to lighter and cheaper laptops or mobile phones, researchers and observers said Wednesday.
Mobile sales to fall 0.7 percent this year: Gartner
Dec 15, 2009 |
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Worldwide sales of mobile devices are expected to decline by nearly 0.7 percent this year and pick up again next year with nine percent growth, Gartner research group said Tuesday.
Mobile phone English lessons a hit in Bangladesh
Dec 14, 2009 |
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Every morning, Ahmed Shariar Sarwar makes it his daily ritual to call number 3000 on his mobile phone to get lessons in English -- his passport to a better life in impoverished Bangladesh.
India 3G auction to be held on schedule: minister
Dec 11, 2009 |
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India's long-awaited auction for third generation (3G) mobile telecom services will be held on schedule next month, a minister said Friday, dismissing media speculation of a delay.
