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A mobile phone or mobile (also called cellphone and handphone) is an electronic device used for mobile telecommunications (mobile telephone, text messaging or data transmission) over a cellular network of specialized base stations known as cell sites. Mobile phones differ from cordless telephones, which only offer telephone service within limited range, e.g. within a home or an office, through a fixed line and a base station owned by the subscriber and also from satellite phones and radio telephones. As opposed to a radio telephone, a cell phone offers full duplex communication, automates calling to and paging from a public land mobile network (PLMN), and handoff (handover) during a phone call when the user moves from one cell (base station coverage area) to another. Most current cell phones connect to a cellular network consisting of switching points and base stations (cell sites) owned by a mobile network operator. In addition to the standard voice function, 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. The International Telecommunication Union estimated that mobile cellular subscriptions worldwide would reach approximately 4.6 billion by the end of 2009. 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. From Wikipedia under the
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560px x 308px | 21.20kB [source page] and have their own towers Some operate using U S networks while others better suited to overseas travelers operate using the international standard GSM network Wireless cell phone plans can be purchased monthly or on a pay as you go basis Monthly plans typically offer a certain amount of anytime minutes for a fee plus incentives From Yahoo Image Search: "Cellular Phones" U Series Samsung Cell phones | wemustevolve.com
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admin Sat, 03 Jul 2010 07:58:53 GM To start with, gripping almost any mobile . phone. in certain ways will reduce its reception by 1 or more bars. This is true of iPhone 4, iPhone 3GS, as well as many Droid, Nokia and RIM . phones. . But some users have reported that iPhone 4 ... From Google Blog Search: "Cellular Phones" Report: Nokia gobbles up Dopplr
CNET News Most people don't need or use a smartphone (yet), and most people buy the "standard" cell phones . Smartphones may be getting a bigger share of the market, ... and more » Cancer risk of cell phones debated
The Detroit News For years, the question of whether cell phones pose a public health threat has been controversial. The cell phone industry and some American public health ... Cell phones : Feds probing health impacts Science News Dr. Dustin Ballard: Is there connection between cell phones and ... Marin Independent-Journal Specter to Dial In on Potential Cell Phone Dangers Public News Service WBKO all 112 news articles » Surplus phones have MU sports messages
Columbia Daily Tribune Mike Bellman thought he was buying a box of old cellular phones he planned to resell as parts. Instead, he wound up with a collection of ... From Google News Search: "Cellular Phones" Anyone knows how to hack games in colored cellular phones like Motorola? Q. i used to download games in cellular phones like motorola for free..I only change something in the URL, i think. But now i can't do it anymore..Anyone knows about the new hacking for downloading free games in mobile phones...Pls answer thank you very much.. Asked by fire_of_desires - Thu Jul 31 04:38:23 2008 - - 1 Answers - 0 Comments Do certain cellular phones work best with certain carriers? Q. should I say more compatible? I have been with at&t for 12 years. I have their phone. I am not getting all my calls. I was told that each carrier has better results from certain carriers. I was looking for verification. Of course at&t can't give me a straight answer. Asked by porchpup552003 - Tue Jul 29 01:50:53 2008 - - 3 Answers - 0 Comments A. In my experience (14 years in wireless) LG makes a fantastic product on CDMA which is the format that Verizon operates on... basically, they have one really tight phone and they make it in different shapes and sizes, adding and deleting bells and whistles depending on their demographic for that device...As Sprint also operates on CDMA, the same goes for LG on that carrier... Motorola makes an OK CDMA product... Conversely, the opposite is true on GSM... Nokia and/or Motorola are the way to go. Now I'm sure some will disagree with me, but I am using 'rate of return' experience Anything that is specifically branded with the carriers name...usually is made by a smaller company.. audiovox makes verizon's XV phones... entry level at best!… [cont.] Answered by roseyposey - Tue Jul 29 06:10:23 2008 Can US Cellular users use unlocked phones?
Q. I was wondering if anyone knows if US Cellular supports phones that are "unlocked"? Asked by BBAller - Tue Dec 2 17:31:49 2008 - - 3 Answers - 0 Comments A. I know that you can not unlock a USA Sprint phone. I brought mine Manila and they unlock many, many different phones but could not unlock mine. This particular Nokia has a proprietary firmware chip in it that will not allow you to unlock and use on different networks. T-moblie will unlock your phone if you have an active account in good standing for 90+ days. ATT will unlock after end of contract and in some other special circumstances. Answered by Manila Mark - Tue Dec 2 17:47:37 2008 From Yahoo Answer Search: "Cellular Phones"
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