Yes. The phone is 'locked' using a computer program - by the carrier that the phone was originally supplied by. They only do this - so they recover the manufacturing costs of the 'free' handset from the first user. However - there are ways to unlock the phone so that it can be used on any network.
You can get your cell phone unlocked through the cell phone carrier you are subscribed to. For example, if you are with Wind Wireless, there is an option on the website to unlock your phone.
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.
An unlocked cell phone means that it can be used with any carrier. It does not have to have a contract; however, it can have a phone line on it. (any phone line, not just at&t, verizon, & sprint)
what is an unlocked cell phone
Any cell phone that is unlocked requires a SIM card to work. If you own a Sidekick cell phone that is unlocked you are able to use a carrier other than T-Mobile. For this reason, it will require a SIM card to work.
Once you register it with your provider, yes.
No, phones are programmed for the carrier, so if it was a Verizon phone, it was programmed for Verizon. It will not work on another carrier.
Yeah totally.
You can buy cell phones that are compatible with any carrier at Ebay.com. They sell a variety of new and used phones that are unlocked and ready to be activated.
With most major carriers it will have the carrier name or logo somewhere on the phone. If it is unlocked it can go on any carrier with the same technology. All carriers are identified by their ICCID number
Some cell phones are designed to use a Subscriber Identification Module (SIM) card, or microchip that stores subscriber data. The SIM card is issued by a carrier and provides cell service by activating any phone into which it is inserted. A locked phone, however, will only recognize a SIM card from a particular carrier. If the cell phone is unlocked, it will recognize a SIM card from any carrier. The "lock" is a software setting that keeps the cell phone "loyal" to one carrier.
As long as one can obtain a SIM card from any cell carrier, an unlocked mobile phone can be used on any carrier. Also, if one is travelling overseas and obtain an international SIM card, calls can be made much more cheaply.