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
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 ...
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.
Google search getting eyes and ears
Dec 08, 2009 |
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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.
UK: Millions of customer records sold
Nov 17, 2009 |
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(AP) -- Rogue employees at a major mobile phone company illegally sold millions of customer records to rival firms, Britain's information watchdog said Tuesday.
Nokia sues top LCD, CRT display makers
Dec 01, 2009 |
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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.
Neuroscience in the driving seat
Medicine & Health / Neuroscience
14 hours ago |
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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 ...
Samsung Launches Open Mobile Platform: Samsung Bada
Nov 12, 2009 |
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Samsung Electronics today announced it will launch its own open mobile platform, Samsung Bada [bada] in December. This new addition to Samsung’s mobile ecosystem enables developers to create applications for ...
Mobile phone sales rise in 3rd quarter: study
Nov 12, 2009 |
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Global sales of mobile phones reversed a slide that began late last year and turned positive in third quarter 2009, a trend expected to accelerate thanks to smartphones, a study disclosed Thursday.
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.
Nokia to ax 220 R&D jobs in Japan
Nov 24, 2009 |
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(AP) -- Nokia Corp. said Tuesday it is axing 220 jobs at research and development units in Japan as the world's largest mobile phone maker continues to cut costs.
EU drops Qualcomm antitrust probe
Nov 24, 2009 |
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(AP) -- European Union antitrust regulators on Tuesday dropped a monopoly abuse probe into wireless chip maker Qualcomm Inc. after mobile phone companies withdrew complaints about high royalty fees.
S.Korea halves ceiling on text messages to fight spam
Nov 25, 2009 |
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South Korean authorities on Wednesday halved the daily limit on text messages sent out by mobile phones as part of a campaign against spam, officials said.
Apple's iPhone set to make splash in South Korea
Nov 27, 2009 |
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(AP) -- The iPhone's arrival in South Korea is generating considerable buzz among consumers and industry watchers amid expectations it will shake up a market dominated by world-beating domestic manufacturers.
Lenovo buying back mobile phone business
Nov 27, 2009 |
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(AP) -- Personal computer maker Lenovo Group said Friday it is joining the race to develop products that link phones and PCs by buying back a mobile phone business that it sold last year.
