Compatibility questions before arriving to the US

teves · 11-01-2012, 21:11

Continuing my last questions, I thought I could get this usb 3g modem which supports UMTS 2100/1900/850 - http://www.amazon.com/Huawei-E1556-U...6311667&sr=8-1

Can I get a SIM card from AT&T, stick it in my phone for voice calls, and when I need to use the internet, put it in this USB modem which supports 850MHZ in 3g, and browse with my laptop?

Is this even possible, Using a regular SIM card with this type of modem?

Can AT&T deny data usage if I try to use the SIM card with a modem and not with a phone?

	(#1)
teves (Offline) Junior Member Amateur Member Posts: 11 Join Date: 23 Aug 2010 Country:	11-01-2012, 21:11 Continuing my last questions, I thought I could get this usb 3g modem which supports UMTS 2100/1900/850 - http://www.amazon.com/Huawei-E1556-U...6311667&sr=8-1 Can I get a SIM card from AT&T, stick it in my phone for voice calls, and when I need to use the internet, put it in this USB modem which supports 850MHZ in 3g, and browse with my laptop? Is this even possible, Using a regular SIM card with this type of modem? Can AT&T deny data usage if I try to use the SIM card with a modem and not with a phone?