consider what wireless carrier you already use. Most mobile hot spots utilize GSM networks, like AT&T and T-Mobile. Verizon and Sprint use CDMA networks, so if those are your carriers, be sure ...

While the best unlocked phones almost certainly support GSM carriers like AT&T and T-Mobile, it’s best to look for devices that work with all the major U.S. providers, including Verizon.

A phone can only be used on a network if it supports the correct band(s). Quad-band usually refers to a phone using GSM technology. A quad-band GSM phone is one that can be used for basic service ...

T-Mobile is now the last carrier in the US still offering a 2G ... T-Mobile mentioned that the capacity and coverage of its 2G (GSM) network would gradually decrease as it started phasing it ...

The Electromagnetic Field 2018 hacker camp in the UK will have its own GSM phone network, and as we have already covered its badge will be a fully-functional GSM phone. This is as far as we are ...