Wireless Communication

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For security reasons. It is so that you will have a number that only you will know, and no one else will know, especially the phone provider, and they will be unable to tell anyone what it is.

for a young kid or teen its having something to think about. its remembering not to forget you r phone- is it charged- did someone call or text- its a constant reminder to have. its also perfect for those situations where the kids or teen wont have the answer to solve it- can i go to my friends house? or can i go to this party? .. they will more than likely call a guardian and it teaches the that its good to ask, and they will because it over the phone its not so confrontational.

It means someone is on the phone with someone else or the phone is off the hook.

when it doesnt come on when you put it in the phone or when its in 2 parts.........

ok... this guy apparently dont know his phones.... people, if you dont have the phone yourself, and have attempted to actaully do aything with it, dont answer the questions, YES you CAN turn a verizon phone into a sprint phone... all you need to do is get verizon to unlock the phone, or pull out your simcard, restore the phone to factory settings, then buy a sprint Simcard pre-paid sprint card and activate the phone.... its that simple, and I personally have done it, therefore I know it works personally.... good luck, and remember to fact check the answers you get, before blindly accepting some one telling you "No, you cant"

The service providers will continue to bill you. If you got a phone tied with the contract they will contact you and offer to upgrade the phone to a newer model.

Its a safety feature only provided by nokia. Suppose you have place your cell phone in tiny place like in table or some where else and in your absence your cell get vibration from the call than there is a chances to fall your mobile from height and your cell may get damaged. So to prevent to happen such things nokia provides this feature.

Most people probably purchase a new cell phone every 1 to 2 years. This is because people like to stay with the times and have the most updated gadgets.

when u pull out the chager to hard handm the chager peacies looses up and it wont chager and u have to get a new one thats one i dont know another one sorry or if u drop it to that can be one and the screen cracks or if u drop it in water

The first cellphone made was in 1973 by Motorola. It wasn't until 1983 that the DynaTAC 8000x cell phone would be sold commercially to the public. From the years 1990 to 2011, cellphone sales and usage went from 12 million to over 6 billion users.

From day one, Gates dreamed of having a personal computer in every home, in every business and in every school. Throughout his career, he never once wavered from this dream. Focusing on software as the means to popularize the PC, Gates built his empire around this central vision and steered clear of all other distractions. And, the vision continues today.

Morse code.

Infra red light modulated and sent down fibre optic cable.

Traffic lights

Display panels.

Freq from 850-1900 for sure in Cell Phones.... Hope it helps?

It is not likely that anyone will actually qualify for a free cell phone. If someone wants a free phone then they usually find they have to sign up to a 12 or 18 month contract with a supplier so they are paying for the rental in effect.

That means that the person you are trying to call has a pre paid phone and he/she does not have enough balance to receive calls.

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It depends what model you want. Pay-and-go phones from Argos cost from around £10 (but you must buy £10 airtime when you buy the handset). See the related link for their full range.

No other devices will work with Boost as they use an iDEN network and this is not compatible with the GSM networks in the US even though they do use a SIM card. The SIM card does work in them for international roaming though. It will not work either way.

You will be able to use your smartphone as a PC at a Wifi hotspot. You will only be able to use the applications that your smartphone has installed though.

It means 'are you okay'

Depends how strict the definition of a resource is. Every finite object (e.g. pencils, paper, computers) is possibly a resource, but the ones that people concern themselves with most often, for example, are: money, manpower, energy (in the form of electric), and natural resources like oil, coal, wood and other chemicals.

We have to think about each component in a phone. There is the casing (uses plastic which comes from crude oil and is shaped using heat produced from coal, oil or nuclear as the primary material).

Then there is the microchip. This is silicon, metal and more plastic. Energy and heat used as well.

The screen is the most complex item. Being made up of chemicals such as liquid crystal, and plastic, this takes energy again to make.

1.It could fall out of your pocket

2.It may ring in class

3.you have to keep up with it or it could get stolen

4.you can't charge it

5.if you don't have pockets and you're a chick, you have to bring a purse that could get lost or stolen if you don't watch it and it's also a hassle to carry around

6. If teachers see them they will take it up

Um, this is all I could think of... hope I helped!

tapped, yes....Traced, yes depending on the phone.

Cellular Taps are actually easier to conduct as its all digital data going through a computer system as opposed to the sound signal system of wired phones.

Traced... this is where it gets tricky. A cell tower cant pinpoint a phone accessing it to the meter. but it does give a relatively accurate location based on factors of signal strength, ping times (distance from tower), and which pallet is being accessed (direction from tower). Usually within a 100 yard area... More modern phones and indeed EVERY smartphone I know of has more advanced systems for tracking such as 3G "Relaytimes" which is very accurate and usually within 50 yards. and GPS which depending on the transmitter in the phone can be accurate to feet in distance.

As far as how you pay... if you use cash it would require some doing to trace a specific phone to being your phone. The ability to trace the phone or tap it doesn't require your method of payment.. that's just what would be needed to link the phone to its user. But believe me.. The only reasons I can think someone would ask this...

1: Don't kidnap people. They will still catch you.

2: Don't cheat on your significant other. They too will still catch you.

3: Don't prank call, the prepaid company will get complaints and kill your number at your cost and you will lose all your paid for minutes.

the report 'mobile phone health risk.the case for action to protect childrens'

There are 40,525,002 people in Spain. There are 29,093,984 internet users, or 71.8 % of the population uses the internet.