Is this cellphone CDMA technolgy or GSM
86434
This phone turned out to be a clone of Sansumg galaxy II, I could not use it, in summary I cheated, I DO NOT recommend to any customer that acquires,
987736
I think so, this is a Verizon phone but not 100% sure it's CDMA. All I know is it didn't come with a SIM card.
1043178
it is a unlocked wcdma cellphone,it support 850/2100Mhz wcdma. you can check with your telecom if they can accept this cellphone
1479591
Yes, it is an unlocked GSM phone. I bought it in US and have used it in India
1836219
I an really not sure as this phone is based on CDMA technology and not GSM. Please check with your carrier to see if they're using CDMA or GSM. If GSM, this is no good.
223692
Yes, well, Verizon, Sprint, and US Cellular are CDMA networks, not GSM. Sorry.
1612849
Yes, it is GSM and 3G phone. Also, since it's a dual phone, one SIM can be GSM and the other 3G, even from different companies.
452090
Well, I shipped the phone overseas, it's unlocked...works both ways GSM and CDMA
1302925
Yes, this is a GSM phone, Not CDMA. It will work with ATT.This phone works at 2G Network GSM 850 / 900 / 1800 / 1900 3G Network HSDPA 850 / 900 / 1900 / 2100
746733
It is both a CDMA and GSM phone. It is dual meaning you can use either type of chip. I highly suggest this phone. I love it. The people at Cricket thought the phone was a Galaxy at first and couldn't believe it wasn't.
2199677
CDMA and GSM are two different phone signal technologies. Verizon/Sprint/Boost/Pageplus etc. is ran on CDMA. AT&T;/Straight-Talk/T-Mobile etc. is ran on GSM. CDMA only means you can only activate the phone with a CDMA carrier. The same goes for GSM as well. In general terms CDMA is ran off a MEID number & GSM is ran off a sim card. The blackberry curve 8830 as pictured can be used for Verizon or Pageplus. The only thing about using it on Pageplus is after activation your talk & text will work fine, although you will have to add your service books for picture messaging/data. There is lots of tutorials out there on how to add them so don't sweat that! Good Luck! Tyler. CDMA and GSM are two different phone signal technologies. Verizon/Sprint/Boost/Pageplus etc. is ran on CDMA. AT&T;/Straight-Talk/T-Mobile etc. is ran on GSM. CDMA only means you can only activate the phone with a CDMA carrier. The same goes for GSM as well. In general terms CDMA is ran off a MEID number & GSM is ran off a sim card. The blackberry curve 8830 as pictured can be used for Verizon or Pageplus. The only thing about using it on Pageplus is after activation your talk & text will work fine, although you will have to add your service books for picture messaging/data. There is lots of... » Read More CDMA and GSM are two different phone signal technologies. Verizon/Sprint/Boost/Pageplus etc. is ran on CDMA. AT&T;/Straight-Talk/T-Mobile etc. is ran on GSM. CDMA only means you can only activate the phone with a CDMA carrier. The same goes for GSM as well. In general terms CDMA is ran off a MEID number & GSM is ran off a sim card. The blackberry curve 8830 as pictured can be used for Verizon or Pageplus. The only thing about using it on Pageplus is after activation your talk & text will work fine, although you will have to add your service books for picture messaging/data. There is lots of tutorials out there on how to add them so don't sweat that! Good Luck! Tyler. « Show Less
1807270
Yes im using my on straighttalk and it originally comes from overseas so yes it has the option to switch from cdma to gsm on settings its a great phone with no shortness of memory and mines never glitched or ever froze best phone ive owned yet u may have to run the 60 dollar plan on straight talk for overseas but def is worth every penny
1704531
CDMA is used by such companies as sprint and verizon and GSM is used by AT&T; and Tmobile. It's just different radio systems that are used in cell phones. For a complete list of which companies use CDMA or GSM go to the following site http://www.ebay.com/gds/GSM-and-CDMA-Guide-/10000000009189079/g.html
1916297
no it has to be a GSM phone, the kind that runs with a sim card. This is a cdma phone. Do a little research on these two bands and you will understand a little better. It took me awhile to figure it all out but havent went wrong yet!
775477
This phone works with AT&T.; I have been using it with AT&T; for 6 months. GSM means the phone uses a SIM card. CDMA does not.
753564
Yes it is. Gms is att. The other kind would be cdma I think. Im for sure about the gsm part tho.
1619773
CDMA, or Code Division Multiple Access, is a competing cell phone service technology to GSM, which is the world's most widely used cell phone standard.Google it :)