Does it require AT&T when using cellular n/w ? If not why does it say ATT 4G in description
547771
It says that in the description because you can use it as a 4G but you don't have to
2278988
I am not sure if there is a difference. Mine is a 4G and I seem to get 4G speeds with it on AT&T.
1910514
Yes, this is from the posted description:* 3G/4G LTE capability (3G dependent on carrier operator and 3G network availability. 4G LTE is US only and at AT&T;)
1932574
No, unfortunately not. It plugs into the 3G MicroCell to help it get a GPS signal. A 3G microcell, along with a high speed Internet line will make your AT&T; phone work where you otherwise don't have cell signal. I imagine other carriers have similar devices.
567686
Hey,this is PriceAngels.In US, 3G band for AT&T; is 850 MHz, 1900 MHz(WCDMA)3G band for T-mobile is 1700/2100MHz, 1900MHz(WCDMA). For this phone, it supports 850 or 2100MHz. So you can use AT&T; SIM and make sure that they support 3G in 850MHz band in your area by contacting AT&T; service.
2278382
Please check the URL http://en.wikipedia.org/wiki/List_of_LTE_networks and phone supports the following4G: LTE 800 / 850 / 900 / 1800 / 2100 / 2600. I do not think you will get 4G as telcel support FDD 1700 based on the Site. I would call them if possible. Based on what I see, an unlocked AT&T would probably work, but better check that as well.
567685
Hey,this is PriceAngels. In US, 3G band for AT&T is 850 MHz, 1900 MHz(WCDMA) 3G band for T-mobile is 1700/2100MHz, 1900MHz(WCDMA). For this phone, it supports 850 or 2100MHz. So you can use AT&T SIM and make sure that they support 3G in 850MHz band in your area by contacting AT&T service.
284851
Due to different configurations in carrier networks - some carriers SIM cards may not work properly. A SIM card capable of operating on a 2G network is required.If you choose to use an AT&T; SIM card it may be required that you call AT&T; to have your SIM card "Unlocked" so that it may work with multiple phones and not just the phone it was originally registered with.The current list of carries with known issues is:Boost MobileTracFone4G SIM cards
25024
If it's a wifi version why does it say wifi+at&t; in the heading and description then ?
902842
Yes it does. Provided it is unlocked. If it is locked to AT&T;, then you would be roaming on their network internationally, which would almost bankrupt you lol. I travel internationally with mine, and drop in a sim card when I reach my destination. If there is no LTE, then you would get 3G.
987689
If you use this phone for 2G network, it supports both at&t and t-mobile. This cell support 3G WCDMA 2100MHz. T-mobile&#65306;1700/2100(WCDMA); AT&T&#65306;1900MHz(WCDMA); So you can use T-mobile to access 3G network with this phone.
1154269
Its a GSM phone meaning it uses a SIM card. AT&T; and T-Mobile are GSM networks. I use T-Mobile and it works fine. Hope this helps.
824476
As far as I know the RM-937 which I have is the "international" version.... mine was unlocked and all I did was get a nano lte sim card from my provider and worked fine.... I guess you would have to do the same, tell at&t; you have a unlocked phone and you need a sim card they should be able to help..... hope that helps......
1937188
Jerry K's question wasn't answered very clearly because there are two "flavors" of 4G, one of which is a slower sort-of 4G that is non-LTE. I've researched this a little and the answer for 4G-LTE is apparently "no". AT&T 4G-LTE is being deployed on two different bands. In the system used in urban areas they use "band 4" which uses 1700 & 2100 mHz simultaneously. In more rural areas they plan to install a "band 17" 700-mHz system which has better "reach". Unfortunately the Z-Boost will NOT amplify either band. It will, however, boost the "non-LTE" sort-of-4G interm systems that AT&T has widely deployed.
747851
You can purchase AT&T; 3G or 4G without any contract - just as needed. If you have wi-fi available, you can shut off the cellular data. I switch back and forth at my convenience.
1720861
On my phone it will take it from 2 bars no 4 and it will give me 2-4 bars 4g. But in some spots even with booster and antenna i get nothing but that is just at&t; for you
135469
No LTE with AT&T; here, just 4g. But your local tower could be different. Verizon appears to work with LTE.