cdma correct? not sim
643853
It was good in the begging but during time passes the buttons start failing
1598672
Set for Metro PCS and Verizon. Very important, it is not a g_s_m phone it's a cdma phone!
1557129
I think CDMA. Not real sure until I can go into my phone. Will let you know. ;)
1713641
I live in Kansas but ordered the phone for my mom in California. Its a good phone but doesn't work without a CDMA sim card. Its not compatible withy moms sim card now, a gsm sim. So frustrated.
1102421
does not work with CDMA, NETWORK COMPATIBILITY GSM 1800/1900/850 / 900UMTS 900/850/2100/1900 HSDPA 900/850/2100/1900
1942720
My phone has written on the back of it 3G CDMA. I hope this information helps.
2124735
As you say in your question, only 1 SIM at a time can use UMTS/WCDMA, the other 1 is on GSM or out of luck if there is no GSM 2G fallback. You can choose in settings which SIM is GSM only.
1503375
ok this phone is cdma, but happens to have sim card slot ?? or does not even have the slot?
428690
Hard to say. It failed shortly after I got it and went to all white screen. I used it on a gsm system, don't know and can't find out about cdma. But the phone is so ATT that any other system means you are limited as to functionality. I wouldn't get it.
240853
All GSM phones such as ones for AT&T or T-Mobile needs SIM card but for Verizon phone which works on CDMA network don't use SIM card but need access code. The packages come with SIM cards and access code so no matter what phone you have you are covered
913039
NO, I just found out and wanted to share with others that the protocol used for Verizon & Sprint uses CDMA, while AT&T; & T Mobile use GSM. So the phones hardware communicates to the cell tower differently. :(
2046521
This is a Verizon phone so it uses CDMA not GSM. You have to use Verizon as your carrier.
753564
Yes it is. Gms is att. The other kind would be cdma I think. Im for sure about the gsm part tho.
1010137
No, we apologize. This is CDMA only. It's not GSM. It's for Metro PCS only. Thank you,ClaytonMobilekarma
773998
If ur cdma phone has sims card net10 will not work. But if it doesn't have Sims card this net 10 Sims card will work fine. Also u can flash ur cdma phone to cricket.
76477
This is without a contract, without any plan , but it is CDMA. Here IN Venezuela work with GPS
2136467
Yes, gsm cellphone uses SIM card( carrier are AT&T & Tmobile) but CDMA cellphone does not use SIM card(carrier Verizon & Sprint)