it is cdma and gsm is simultaneously in one phone?
1150642
Its primarily CDMA phone, with GSM that can be used as secondarily outside the states only.
2174236
I only have two handsets and they can both be used on the same call.dinaleah
615257
GSM is a radio network for AT&T & T Mobil cell phones And page plus & Verizon radio network is CDMA A locked phone has nothing to do with GSM or CDMA The lock is in the phone. it is a security code the owner establishes in the phone
359090
Definition: 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. CDMA uses a "spread-spectrum" technique whereby electromagnetic energy is spread to allow for a signal with a wider bandwidth. This allows multiple people on multiple cell phones to be "multiplexed" over the same channel to share a bandwidth of frequencies. With CDMA technology, data and voice packets are separated using codes and then transmitted using a wide frequency range. Since more space is often allocated for data with CDMA, this standard became attractive for 3G high-speed mobile Internet use. The CDMA standard was originally designed by Qualcomm in the U.S. and is primarily used in the U.S. and portions of Asia by other carriers. Sprint, Virgin Mobile and Verizon Wireless use CDMA while T-Mobile and AT&T use GSM. While CDMA and GSM compete head on in terms of higher bandwidth speed (i.e. for surfing the mobile Web), GSM has more complete global coverage due to roaming and international roaming contracts. GSM technology tends to cover rural areas in the U.S. more completely than CDMA. Over time, CDMA won out over less advanced TDMA technology, which was incorporated into more advanced GSM.
470266
I don't know what a cdma is, but if you want more storage than the few megabites in the phone you'll need a sim card.
2032307
no, it only have one slot. but it can work with both CDMA or GSM. i have tried it with T-mobile and it works fine (talk only yet to try web and text).
138718
The answer is "both." The phone has GSM and CDMA. You can choose to use either GSM, CDMA, or both.Hope this answers your question. As a reminder, I still love mine to teeth : )
1082019
Yes its a Gsm phone, it uses a standard size SIM card, it also has a slot for a micro SD for multimedia
223692
Yes, well, Verizon, Sprint, and US Cellular are CDMA networks, not GSM. Sorry.
1528139
No, unfortunately Verizon uses a technology known as CDMA which is not compatible with the GSM technology the rest of the world (and providers here in the USA like AT
442938
Dual SIM feature allows you to operate 2 separate phone numbers from the same hardware. They are both usually active to receive call. Of cause you can only answer one line at a time.
286887
Do you have two phone numbers working on the one phone? Would it be possible to have a US (ATT) and a Telcel number active at the same time? Calvin
1317698
No, this phone is capable just for 2G and 3G, GSM and HSDPA networks respectively. For 4G you need a phone capable to operate in CDMA network.
1848002
Absolutely. This is a super system and we regularly have separate calls at the same time on different handsets. Both lines can work at once perfectly well.
1229656
your question is not clear enough .... this phone is a GSM compatible phone. Not CDMA
850315
Yes. That's absolutely right. Currently, I utilize two sim cards from two different providers at the same time. Both sims (with their respective numbers) are active at the same time and I have had no problems making or receiving calls from either.
1942721
i believe that all earlier versions are GSM but newer versions are CDMA, you should have it verfied for the specific one you are buying.