GSM

Hello, is unlocked cellphone the same as dual SIM?

Is an iphone 4s with a bad esn still usable with a good sim card as a gsm phone since it has both capabilities?

Will a phone with frequency "GSM 850/900/1800/1900 MHz" work with AT&T's 1900mhz 3G network?

i need a cheap gsm phone without contract.

Can you put an iphone oon this thing?

Hey guys. I've got an old BB 8830 World Edition here, that I need to use until I can afford a replacement for my damaged phone. Now I got it with Bell a few years ago. My question is: If I can manage to unlock the phone, will it work with my Koodo sim card (For those who don't know Koodo is a...

Hello, what is a GSM phone??? and... can they operate with Verizon Network?

What is the advantage of having an unlocked GSM phone. Who is your service provider!?

The idea of a mainstream satellite phone, so the story goes, came from Karen Bertiger, wife of Motorola engineer Bary Bertiger, requesting a phone connection while honeymooning in the Bahamas sometime in the 1980s. Thuraya Launches Dual-Mode Satellite & GSM Phone : Read more

pc setting virgin gsm x2 nokia mobile

Hello, i have another sim card numbers with use mobile nuber...so help for any one to me....

Apple is selling an unlocked iPhone 4S, but what does that mean? Unlocked iPhone 4S Will Only Work on GSM Carriers : Read more

am already using reliance gsm in my mobile samsung monte when i try to change to other network sim mobile is not detecting the sim other than reliance gsm. How can i use other network sim in my mobile

Apple's next iPhone is rumored to be compatible with both CDMA and GSM networks. Report: iPhone 5 a Dual-Mode CDMA/GSM World Phone? : Read more

Hello, can i buy a phone that runs on a gsm network w verizon as my carrier

Hello,I have an unlocked nokia GSM cellphone will it work on the boost network?

Hello, From where these GSM handsets get the realtime update?,Is if from BSC or MSC and How?

I recently bought an unlocked gsm that is quad band will operate at 1900 MHz. I subscribe to at&t and have hardly if ever had issues with any phone. I have read pro's and con's. I did it unknowingly. Will it work ok? Internet functions? phone functionality? is there some setting i need to...

i want to use the cdma sim in my nokia 1100 phone please help me

I am with Alltel that changed to Verizon and I bought a phone off e-bay detailing it was an Altell phone with CDMA network. I didn't know. I went down to Verizon because I couldn't transfer the information from the old phone and they told me that some how this phone was put on a GSM network with...