The mobile world is divided into two categories: GSM and CDMA. What's the difference between them - and why are some network operators in Europe weighing whether to switch technologies?

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 ...

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 ...