You need one with a SIM Card slot. From there, find a GSM carrier, buy a SIM card and slip it in. (T-Mobile, AT&T, and every European carrier is GSM).
No you are not required to. You should if there is no one else to help though because you are certified.
This is what sucks about the pearl. I know if you have t-mobile you can do this im not for sure about any other carrier. But you have to take out the battery and theres a metal thing that you have to flip up and then you slide the card into the slot and close the slot and it should stay in there if not go to your carrier and they should do it for you.
An Apple iPhone 3GS can be purcased unlocked without a SIM card and used with a local carrier's SIM card. Once purchased it is as simple as inserting a SIM card from the carrier of your choice.
If your SIM card is not working in your iPhone 3G, you should check with the dealer you got the phone from. It may need to be unlocked for use with a different carrier.
Its a four digit number inside the card carrier you buy it in
the sim card is just an identifier card for the network that carries your service. there is no information stored on the card. however, the police can contact the carrier for the network and get any and all personal information that the person has on file with the carrier, provided it is within the boundaries of the law
i los my sim card how can i get new sim card seam number
On a bibliographic card in an index-card organizational system, you should record important information about a source, including the author's name, title of the work, publication date, and page numbers. This allows you to easily locate and reference the source when needed.
You must have a SIM card for the carrier you want to use and the phone must be compatible with that carrier.
The answer to this questions varies by the specific hardware and carrier's involved, but generally would be rather difficult to accomplish for an average consumer. Ask the new carrier if they would be able and willing to activate the existing air card on their network - the existing card may not even be technically compatible with the new carrier's network.
No. Each carrier has allowed cell phones for their carrier. If you have a GSM carrier though, you can buy an unlocked phone to use on that carrier even if the carrier doesn't support the phone. All you do is move your sim card.