12-14-2013 1:18 PM
Does ATT support GSM 900 and 1800 MHz frequencies?
I'm trying to get a GSM 2G alarm system set up and don't show any bars at all, no matter where I place the main unit. I put the SIM in my GoPhone as a test. That SIM works fine in my GoPhone, 5 bars too.
The other possibility is obvious if the frequencies are OK.
Solved by: Go to Solution.
02-07-2015 9:35 PM
02-07-2015 10:11 PM
05-12-2015 9:13 AM
Hello everyone, this forum has been so helpful to me, but I still need a little direction/confirmation.
I want to purchase an international Samsung Galaxy Tab 4 LTE GSM UNLOCKED and use it as a phone / tablet.
Here are the stats:
2G bands GSM 850 / 900 / 1800 / 1900
3G bands HSDPA 850 / 900 / 1900 / 2100
4G bands LTE 800 / 850 / 900 / 1800 / 2100 / 2600
Speed HSPA 42.2/5.76 Mbps
LTE Cat4 150/50 Mbps
According to the previous posts I think that it’s an ok purchase and that it will work on all AT&T networks including Straight Talk and Cricket. However I’m still not quite sure if I will have LTE.
Please let me know if I’ll have LTE or what speed I will have in general; I think I will have 4G most of the time but I could be totally wrong. Thanks J
Also, I live an hour away from Orlando zip here is 32780 if that helps.
10-13-2015 5:50 AM
The ATT D850 LG G3 has Band 3 1800 on the hardware for LTE i believe. So LTE on 1800mhz will work right if there was a 1800mhz network for LTE available?
06-05-2016 11:54 AM
I am looking for a watch for my elderly father with dementia - I found one (from China of course) on Amazon. It says that it has watch tracker support SMS/GPRS/TCP/UDP,SMS and the Internet to check the location information, Google plane and satellite maps;supports GSM 850/900/1800/1900 network SIM card - is that the right specifications for me to get the watch with a sim card put on my AT&T plan?
06-05-2016 4:04 PM
I have a friend who went through the same concern for her mother. We found some options
And this one on Amazon
Most of the other trackers on Amazon are 2 G only and require a SIM card.
07-30-2017 7:04 PM
This is about the comment that China Mainland Phones only work on 2g service in the US. This is absolutely not true. There are a lot of phones that you can purchase from there that work on 3G service. It's only a few that work on AT&T's LTE service, but I have had 4 phones in the last year that all work on the AT&T 3G service. You just have to do your homework and make sure of thephone and the Bandwidths before you make a purchase one.