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
GSM system about to be compromised
Dec 08, 2009 |
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(PhysOrg.com) -- Research scientists in California and elsewhere are deliberately setting out to compromise the mobile phone system used by around three billion people. The system uses Global System for Mobile ...
Polluting pets: the devastating impact of man's best friend
Dec 21, 2009 |
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Man's best friend could be one of the environment's worst enemies, according to a new study which says the carbon pawprint of a pet dog is more than double that of a gas-guzzling sports utility vehicle.
iPhones are musical instruments in new course and ensemble (w/ Video)
Dec 01, 2009 |
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(PhysOrg.com) -- iPhones are being used as musical instruments in a new course at the University of Michigan.
Taiwan unveils super-tiny microchip
Dec 16, 2009 |
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Taiwan has developed tiny microchips that could lead to lighter and cheaper laptops or mobile phones, researchers and observers said Wednesday.
Modified iPhones Are Compromised By New Worm
Electronics / Consumer & Gadgets
Nov 25, 2009 |
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(PhysOrg.com) -- Several research security firms have reported a new worm attack against jail broken iPhones, dubbed "Ikee.B or "Duh", this worm searches for personal and banking information.
Google hints at making mobile telephone
Electronics / Consumer & Gadgets
Dec 13, 2009 |
4.3 / 5 (4) |
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The Internet on Saturday buzzed with renewed rumors of Google making its own smartphone, after the Internet powerhouse said it is internally dabbling with a mobile device.
TeliaSonera launches first commercial 4G/LTE network
Dec 14, 2009 |
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Nordic telecom operator TeliaSonera announced Monday the launch in Stockholm and Oslo of the world's first commercial 4G/LTE mobile network, up to 10 times faster than current networks.
Google search getting eyes and ears
Dec 08, 2009 |
5 / 5 (2) |
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Google search is getting eyes and ears, moving beyond typed key words to let people scour the Internet with mobile telephone cameras or spoken words in multiple languages.
Neuroscience in the driving seat
Medicine & Health / Neuroscience
Dec 11, 2009 |
5 / 5 (2) |
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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 ...
Teachers begin using cell phones for class lessons
Nov 27, 2009 |
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(AP) -- Ariana Leonard's high school students shuffled in their seats, eagerly awaiting a cue from their Spanish teacher that the assignment would begin. "Take out your cell phones," she said in Spanish.
Nokia sues top LCD, CRT display makers
Dec 01, 2009 |
5 / 5 (1) |
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(AP) -- Nokia Corp., the world's biggest mobile phone maker, said Tuesday it has filed suits against several leading liquid crystal display makers - including Philips, Toshiba, Sharp and Samsung - for alleged price fixing.
iPhone's debut in S.Korea means paradigm shift: experts
Nov 28, 2009 |
4 / 5 (1) |
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Apple's top selling iPhone made its debut in South Korea Saturday with experts saying the iconic smartphone is likely to serve as a wake-up call for an IT industry basking in an isolated market.
Google tests new phone to profit from mobile Web
Electronics / Consumer & Gadgets
Dec 14, 2009 |
1 / 5 (1) |
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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 ...
Mobile multimedia revenues tipped to dethrone text
Nov 23, 2009 |
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Multimedia services will surpass text messaging this year as the main source of mobile operators' non-voice revenue in the Asia-Pacific region, industry analyst IDC said Monday.
Spotify launches application for Nokia phones
Nov 23, 2009 |
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Swedish streaming software Spotify announced on Monday the launch of a music application for the Symbian platform, used by the world's biggest mobile phone maker Nokia and other smartphones.
