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 ...

Refers to GSM cellphones that can be used worldwide because they support all four GSM frequency bands (850, 900, 1800 and 1900 MHz). See dual-band handset. THIS DEFINITION IS FOR PERSONAL USE ONLY.

A phone that supports four different radio frequency bands ... 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 ...

Within North America, 5G cellular service is able to operate in several frequency bands. The higher the frequency, the faster the speed; however, the signals are less capable of penetrating ...

A Tri-band GSM phone is one that supports three of the four major GSM frequency bands, allowing it to work in most parts of the world. The two most common kinds of tri-band GSM phones are the ...

4G is the fourth generation of mobile phone communications standards. It is a successor of the 3G and provides ultra-broadband internet access for mobile devices. The high data transfer rates make 4G ...