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?

CDMA 850 is CDMA technology operating in the Cellular (850 MHz) frequency band. Before the existence of GSM 850, the Cellular band was often referred to as the "800 MHz" band. "850 MHz" implies a ...

CDMA is being phased out for 4G and 5G. Contrast with GSM phone. See CDMA. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction requires permission.