In the U.S., AT&T and T-Mobile are GSM carriers. Contrast with CDMA phone. See GSM. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction requires permission.

Over the last few years, news that police, military, and intelligence organizations use portable cellular phone surveillance ... intercepting unencrypted GSM signals. It’s great if you want ...

Over on Hackaday.io, [bobricius] took this technology and designed something great. It’s a GSM cell phone with a case made out of FR4. It’s beautiful, and if you’re ever in need of a ...

Scancom, which launched services in 1996, operates a nationwide mobile phone network using GSM technology. Under the brand name Spacefon, the company has become the leading mobile provider in ...