Unlocked phones can be used with any carrier, so it will support T-Mobile.
an unlocked phone could mean one of two things. One, the phone belongs to a GSM carrier (like T-mobile, or AT&T) but being that it is unlocked you can use it with any carrier that requires a sim card. The second can mean that it is a CDMA phone with GSM capabilities normally on a Sprint or Verizon Global phone meaning it is a CDMA phone with a sim card slot and as long as it is unlocked it can be used also with any other carrier that requires a sim card. However it has nothing to do with what is on the actual phone, so even if it says T-mobile it can still be an unlocked phone.
Hi, yes a at&t Sim card will work on any unlocked phone
Unlocked phones are GSM phones that will work with any GSM carrier. A GSM phone works on AT& T, T-mobil and any other system that is GSM compatible. Most inetrnational cariers are GSM.
Yes if the phone is unlocked and you get an AT&T sim.
Yes
AT&T/Verizon allows you to use an unlocked phone. Also there are many models of the Apple IPhone. AT&T is less expensive than most of the unlocked phones. The company pays part of the cost.
You can't get a T Mobile service on a phone that's not T Mobile unless you get it unlocked. Once the phone is unlocked, you can use your T Mobile SIM card on it or any other GSM SIM cards worldwide.
Yes, an unlocked Nexus One or an AT&T-branded version works with AT&T. There was also a T-Mobile-branded Nexus One, so if you are looking to purchase the device, make sure it's either unlocked or is AT&T branded.
For a cell phone to be unlocked, it means that the phone is able to use any SIM card from any phone network type. For example, a locked Verizon Wireless phone would be unable to accept and function with an AT&T SIM card, whilst an unlocked Verizon Wireless phone would be able to accept and function with an AT&T SIM card.
No, T-Mobile is GSM and Verizon is CDMA so you can't switch between those two networks. Unlocked T-Mobile can be used on AT&T though.
You will have to first get the phone unlocked.