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 cellphone
AT&T to release cellphone with optional projector
Electronics / Consumer & Gadgets
Dec 01, 2009 |
4.4 / 5 (7) |
1
If cellphones with built-in video projectors are going to take the country by storm, then Dallas will be at the eye of the hurricane.
Cellphone powers back pain chip in Taiwan
Nov 27, 2009 |
4.3 / 5 (3) |
0
Taiwanese researchers have developed a chip to treat backpain that is powered by mobile phone, a member of the team said Friday.
Technological devices offer glimpse into future
Oct 08, 2009 |
2.3 / 5 (3) |
0
Nancy Lan-Lan Ma, a student at Keio University in Japan, demonstrates her product, Cheeron++, at the UbiComp in Orlando, Fla. Sorry, Elmo, the dolls of the future are not just for tickles.
Is your cellphone a source of pain?
Oct 05, 2009 |
not rated yet |
0
Jill Garonzik Kelley of Allen, Texas, is thankful for unlimited minutes on her cellphone. After all, she did rack up 4,500 last month. What the 41-year-old advertising strategist is not as happy about is the pain after a ...
Handheld 3M digital projector offers glimpse of the future
Electronics / Consumer & Gadgets
Sep 17, 2009 |
4.1 / 5 (9) |
1
You probably shouldn't buy the MPro120 handheld digital projector from 3M. But you should definitely be excited about it.
Tech review: Charging mat, iPhone cases are smart, useful accessories
Electronics / Consumer & Gadgets
Sep 04, 2009 |
2 / 5 (5) |
1
The Charge4All Portable Charging Mat is a darn handy solution to a growing problem.
Mobile phone towers a threat to honey bees: study
Aug 31, 2009 |
4.1 / 5 (10) |
9
The electromagnetic waves emitted by mobile phone towers and cellphones can pose a threat to honey bees, a study published in India has concluded.
Microsoft Office coming to Nokia mobiles
Aug 12, 2009 |
1 / 5 (1) |
0
Microsoft and Nokia, in a challenge to Research in Motion's Blackberry, announced Wednesday that Microsoft Office software will be available on smartphones made by the Finnish company.
Japan's DoCoMo eyes cash transfer by cellphone
May 27, 2009 |
5 / 5 (1) |
1
Japan's top mobile telephone operator NTT DoCoMo said Wednesday it aimed to launch a new service enabling cash transfers simply by entering the recipient's cellphone number.
Apple 'to design own computer chips'
Apr 30, 2009 |
4.6 / 5 (8) |
6
Apple is building the capability to design its own computer chips in a strategic shift aimed at cutting its reliance on outside suppliers, The Wall Street Journal reported Thursday.
T-Mobile plans Android-based home devices: Times
Electronics / Consumer & Gadgets
Apr 06, 2009 |
2 / 5 (1) |
1
US wireless carrier T-Mobile plans to make a push into the home with communications devices that will run on Google's Android open-source software, The New York Times reported on Monday.
Europe, South Korea, dominate global IT development (Update)
Mar 02, 2009 |
not rated yet |
0
North European countries and South Korea have the fastest and most widespread telecoms and computer growth in the world, the UN's telecomunications agency said on Monday.
RIM rules out battery flaw with Blackberry Bold
Electronics / Consumer & Gadgets
Feb 28, 2009 |
1 / 5 (1) |
0
Canada's Research In Motion said Friday it has ruled out faulty batteries as the likely cause of keyboards heating up during recharging of its BlackBerry Bold smart phones sold in Japan.
