the AT&T network, and the T-Mobile network both use SIM cards
I know that Nextel and Sprint also use sim cards.
Cellcom in Wisconsin does not have sim cards, wish they did. I have heard that you can get a sim card from them but non of their phones have a spot for sim cards.
the AT&T network, and the T-Mobile network both use SIM cards I know that Nextel and Sprint also use sim cards.
"Yes. All phones need a SIM card, or it will not function." Actually, that answer is incredibly wrong. SOME phones use SIM cards. Some phones don't. A phone on the Verizon, Alltel, or Sprint networks do not use SIM cards as they operate on CDMA platforms. iDEN (an ancient Nextel system) or the global standard GSM (AT&T) use SIM cards.
There is no such thing as a CDMA SIM card, since CDMA phones do not use SIM cards.
Not all cell phones are compatible with SIM cards. Some only work with a contract, and you need to unlock the phone before you can use a SIM card.
Well . There are two major mobile carriers. One is called China Mobile, and cell phones with their service usually use sim cards. And the other one is called China Unicom, and they are using CDMA which does not use sim cards.
There are many mobile phones that do not require a SIM card, it depends on the service provider. Any phones from Sprint and Verizon do not use SIM cards.
BlackBerry 8703e doesn't use sim cards. Only GSM and iDEN providers use sim cards. CDMA phones cannot be unlocked.Mazi Asikabulu
Verizon does not use sim cards in their phones (except the iPhone). So no you would not be able to use an AT&T Sim card in a new Verizon phone. sorry.
The dual SIM phones allows users to have to SIM cards inside the battery compartment. The user can use a single phone to take calls for two different numbers.
Some mobile phones use SIM cards, other don't. The phones with SIM card slot allow the user to change the SIM; this way you can change the telephone number, or you can log to different networks (providers). SIM cards have not any alternative solutions.
ALL mobile phones use a SIM card ! It's how the network identifies the individual phone.