Do you have to have a SIM Card from a GSM carrier (AT&amp;T) or would a SIM Card from a CDMA carrier (US Cellular) work?
660460
You do not need to get your own sim card, we provide you with the service and the sim card.
735297
What is the cell phone carrier? I believe it works with all carriers that require a sim card because it is unlocked. Call the cell phone company that you want to go with and ask just to be sure.
612382
Yes, it should work with any GSM SIM card - the phone itself is unlocked. I had no problems getting it working on the AT&T; network here in California. Be aware that it takes a Micro SIM, not a regular size SIM.
1101733
As an unlocked phone it is capable of working with any GSM Carrier inside and outside the U.S providing their services using a SIM Card. However, we can only guarantee basic call and text, we recommend contacting your Carrier and making sure they provide their services to this model phone without any restrictions.
1358866
Any GSM phone uses a SIM card so this phone does have a slot for sim card. In general, T mobile and at&t phones are gsm. And if the phone is unlocked and your carrier uses sim card, this phone should work with your carrier.
1078280
An Unlocked phone should work with any carrier. My At&t; sim went in well and worked perfectly even though it's already an At&t; phone.
16888
The CDMA has to be unlocked. The GSM works if you put the network setting to automatic.
1554012
I bought a sim card and it worked as long as your phone is ATT or Sprint you have to make sure you get the right card.
1267089
I have an AT&T voice and data plan in U.S. with a 3G sim card. It works without problems
1538078
You need to contact your carrier's network to verify whether or not the carrier's network allow the use of SIM cards. For Instance, Straight may accept the use of SIM cards only if the telephone was previously carried by a network that allows the use of SIM card such as Simple Mobile or T Mobile. You also need to verify the specifications for your particular telephone : A CDMA network used by Verizon, U.S. Cellular, and Sprint; or a GSM network used by T-Mobile and AT & T. Some cell phones are designed to use both networks (CDMA or GSM).
1735473
As an unlocked phone it is capable of working with any GSM Carrier inside and out the US providing their services using a SIM Card. However, we can only guarantee basic call and text, we recommend contacting your Carrier and making sure they provide their services to this model phone without any restrictions.
892491
Yes you can use AT&T; simcard, this phone is unlocked so it works with any mobile operator. I use T-Mobile
730017
I have an AT&T; voice and data plan in U.S. with a 3G sim card. It works without problems
767262
Yes. This means you need a working SIM (subscriber identity module) from a GSM provider (AT&T, T-Mobile USA or Rogers) to use it.
1210933
When I cam home to the US I purchased my sim from AT&T.; It works great. I was using it in Brazil and using a TIM sim.
824157
It will work with any GSM system. It will not work on CDMA Systems. ATT is a GSM System. Verizon is CDMA. It will work in most Countries on at least one carrier within that Country. GSM is the more prevelant type of system used in most of the world. GSM requires a SIM Card. CDMA does not. I regularly go from Latin America to the States an use ATT GO PHONE plan when I'm in the US. All I do is swap the SIM card. I find it cheaper than paying International rates. You can get a SIM card in most countries for about $10 USD.
905811
yes. we have at&t and the sim card from their contract phone works just fine.