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The International Telecommunication Union estimated that mobile cellular subscriptions worldwide would reach approximately 4.1 billion by the end of 2008 and mobile phones are starting to reach the bottom of the economic pyramid.

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Wikipedia About Mobile Phones

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The International Telecommunication Union estimated that mobile cellular subscriptions worldwide would reach approximately 4.1 billion by the end of 2008 and mobile phones are starting to reach the bottom of the economic pyramid.

History

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In 1945, the zero generation (0G) of mobile telephones was introduced. Like other technologies of the time, it involved a single, powerful base station covering a wide area, and each telephone would effectively monopolize a channel over that whole area while in use. The concepts of frequency reuse and handoff, as well as a number of other concepts that formed the basis of modern cell phone technology, are first described in , issued May 1, 1979 to Charles A. Gladden and Martin H. Parelman, both of Las Vegas, Nevada and assigned by them to the United States Government.

This is the first embodiment of all the concepts that formed the basis of the next major step in mobile telephony, the Analog cellular telephone. Concepts covered in this patent (cited in at least 34 other patents) also were later extended to several satellite communication systems. Later updating of the cellular system to a digital system credits this patent.

Martin Cooper, a Motorola researcher and executive is widely considered to be the inventor of the first practical mobile phone for hand-held use in a non-vehicle setting. Cooper is the inventor named on "Radio telephone system" filed on October 17, 1973 with the US Patent Office and later issued as US Patent 3,906,166. Using a modern, if somewhat heavy portable handset, Cooper made the first call on a hand-held mobile phone on April 3, 1973 to a rival, Dr. Joel S. Engel of Bell Labs.

The first commercial citywide cellular network was launched in Japan by NTT in 1979. Fully automatic cellular networks were first introduced in the early to mid 1980s (the 1G generation). The Nordic Mobile Telephone (NMT) system went online in Denmark, Finland, Norway and Sweden in 1981.

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Cellular systems required several leaps of technology, including handover, which allowed a conversation to continue as a mobile phone traveled from cell to cell. This system included variable transmission power in both the base stations and the telephones (controlled by the base stations), which allowed range and cell size to vary. As the system expanded and neared capacity, the ability to reduce transmission power allowed new cells to be added, resulting in more, smaller cells and thus more capacity. The evidence of this growth can still be seen in the many older, tall cell site towers with no antennae on the upper parts of their towers. These sites originally created large cells, and so had their antennae mounted atop high towers; the towers were designed so that as the system expanded—and cell sizes shrank—the antennae could be lowered on their original masts to reduce range. thumb|A 1991 GSM mobile phone The first "modern" network technology on digital 2G (second generation) cellular technology was launched by Radiolinja (now part of Elisa Group) in 1991 in Finland on the GSM standard which also marked the introduction of competition in mobile telecoms when Radiolinja challenged incumbent Telecom Finland (now part of TeliaSonera) who ran a 1G NMT network.

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News about Mobile Phones

Windows Mobile 6.5 phones launch this fall with voice recognition

WindowsForDevices— Apr. 29, 2009 — Microsoft has announced that Windows Mobile 6.5 phones will debut this fall with extensive voice command features, courtesy of the company's Tellme Networks subsidiary. Users will be able to make calls, send texts, or search the web via speech, the company says. ...http://www.windowsfordevices.com/news/200904291751NS52174872...

Rwanda: Rwandatel Discards CDMA Mobile Phones

AllAfrica.comKigali — Rwandatel has started the exercise of changing the use of Code Division Multiple Access (CDMA) mobile phones to its newly acquired 3G, Global System for Mobile (GSM) technology, which is flexible and has capacity to handle a lot of data.http://allafrica.com/stories/200905080851.html

Mobile phones turn into barcode scanners

BizReportNew mobile phone barcode scanning technology has been released that will help further integrate the devices in to the sales and marketing loop and bring on- and offline media closer together.http://www.bizreport.com/2009/05/mobile_phones_turn_into_bar...

Number of mobile phones seized in prisons is rising

Lancashire Evening PostPrison officers at Preston Prison seized 181 mobile phones or SIM cards last year.http://www.lep.co.uk/news/Number-of-mobile-phones-seized.524...

A fifth of US homes have only mobile phones,

AP via Yahoo! FinanceFor the first time, the number of U.S. households opting for only mobile phones outnumber those that just have traditional landlines in a high-tech shift accelerated by the recession.http://biz.yahoo.com/ap/090506/us_mobile_phones_only.html?.v...

News about Mobile Phones

Qtel partner shop a big hit in the Industrial Area

Gulf TimesA new ‘Dreams Phones’ shop in the Industrial Area has seen a big turnout of customers in the initial days, Qtel has said. As a premium partner of Qtel, Dreams Phones provides a wide range of affordable mobile phones and Hala phone cards, and its ... http://www.gulf-times.com/site/topics/article.asp?cu_no=2&it...

T-Mobile's Walmart Roadmap Shows G2, G1 v2 Bigfoot and More

SoftpediaOther mobile phones to arrive at T-Mobile this year include the Sony Ericsson Elle , which should become available in October for free, it seems, as well as a Samsung QWERTY clamshell reportedly called XO and expected to come in August for $38. More ... http://news.softpedia.com/news/T-Mobile-039-s-Walmart-Roadma...

Cell phones to monitor cardiac patients

Times of IndiaMELBOURNE: In a bid to encourage heart patients to complete their rehabilitation programs after surgery, Australian scientists have come up with a new technique that will see nurses monitoring them via a mobile phone. The trial, being run by the ... http://timesofindia.indiatimes.com/Health--Science/Cell-phon...

Would-be scammer ships stolen cellphones to FBI

Intomobile.comFile this one under “dumass criminals.” The latest mobile-related shenanigans to cross the wires has a 44-year old man from Memphis, Tenn., trying to jack a cellphone distributor for some 50 phones. The kicker is that he shipped the phones to an ... http://www.intomobile.com/2009/05/09/would-be-scammer-ships-...

Bird Watching »

yorkshirepostLatest mobile phone technology gives birdwatchers a flying start Nature guidebooks were once too bulky to take on a walk, now they load on to mobile phones. Roger Ratcliffe tests the new portable aids. Police called in after rare bird poisoned in ... http://www.yorkshirepost.co.uk/sectionhome.aspx?sectionID=61...

Search results for Mobile Phones

Mobile Phones | Compare FREE Mobile Phones & Cheap Mobile Phone Deals

Compare mobile phones and cheap mobile phone deals from the biggest UK networks including Orange, T Mobile, 3 mobile, o2, Vodafone and Virgin Mobile. Get your FREE mobile phone ... http://www.mobileshop.com/

Mobile Phones

MobilePhones.am - The cheapeast mobile phones in Armenia. ... Year: 2007 Standart: GSM 850 / GSM 900 / GSM 1800 / GSM 1900 Weight: 135 ghttp://www.mobilephones.am/

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Nokia N86 will offer 8MPx digital camera from Carl Zeisshttp://ipmobile.info/

3 Store: Home

Mobile Broadband 15GB data allowance a month ... Fujitsu Siemens Li3710 Easy to use and has powerful Dual Core processor for speed £40 a ... http://threestore.three.co.uk/

Wikipedia results for Mobile Phones

Mobile phone - Wikipedia, the free encyclopedia

A mobile phone (also known as a handphone, [1] wireless phone, cell phone, cellular phone, cellular telephone or cell telephone) is a long-range, electronic device used for mobile ... http://en.wikipedia.org/wiki/Mobile_phone

Mobile phones on aircraft - Wikipedia, the free encyclopedia

The use of mobile telephones aboard commercial aircraft is gradually being accepted during flights. Several airlines have already allowed it and more intend to do so.http://en.wikipedia.org/wiki/Mobile_phones_on_aircraft

Mobile phone - Wikipedia, the free encyclopedia

A mobile phone (also known as a wireless phone, cell phone, or cellular telephone [1]) is a short-range, electronic device used for mobile voice or data communication over a ... http://en.wikipedia.org/wiki/Mobile_cellular_wireless

Mobile phone radiation and health - Wikipedia, the free encyclopedia

Mobile phone radiation and health concerns have been raised, especially following the enormous increase in the use of wireless mobile telephony throughout the world (as of August ... http://en.wikipedia.org/wiki/Health_and_mobile_phones

Samsung Telecommunications - Wikipedia, the free encyclopedia

Samsung Telecommunications is one of five business units within Samsung Electronics, belonging to the Samsung Group, and consists of the Mobile Communications Division ... http://en.wikipedia.org/wiki/Samsung_mobile_phones
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Answers for Mobile Phones

kh.mobile phones?kh.Benefits: Convenience, always being able to be in touch Problems: driving distractions, going over your minutes, annoying people in restaurants ;)ChukaWhat features do you think mobile-phone users would expect to see in their phones in the near future?ChukaOTA (over the air) Digital TV... two way video calling/chat/messaging... instant payment processing... 800x600 - 1280x720 resolution 5.8" OLED wide touchscreens... PC/MAC level operating systems.......vikas kHow to connect head phones to mobile phone and computer simeltaniously?vikas kyou would need a mixerprasadHow many mobile phones are allowed in to india by customs act?prasadyou will be allowed only one for others if it is used one then you have to pay as per used one custom duty and if it pack brand new piece then you have to pay as per custom duty.lethaandshankarCan landline phones also have mobile phone features?lethaandshankarNow days, almost all new model cordless home phones have the ability to store names and numbers for quick access and dialing. I use Panasonic cordless phones for home use which can store up to 50 pho...
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