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.

On the software side the base stations all run the Osmocom (Open Source Mobile Communications ... Field 2018 gets one of these GSM phone badges. Read Hackaday’s first look at the hardware.

Different mobile phone networks around the world use different bands. 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 ...

Beside the mobile phone specifications, GSMArena is happy to also provide you with its own country-based frequency band directory. It's not operator-specific and it's helpful if you are choosing a ...

Beside the mobile phone specifications, GSMArena is happy to also provide you with its own country-based frequency band directory. It's not operator-specific and it's helpful if you are choosing a ...

There may have been commercial and practical reasons too. Had GSM ended up with 128-bit encryption mobile phones would not have been able to be sold in then-communist Eastern Europe because of ...

GSM mobile operators add 81.7 lakh subscribers in Dec: COAI GSM mobile operators added 81.7 lakh subscribers in December, taking their overall user base to 67.85 crore at the month end.