Glossary definition of Quad band

Quad-band Phone is a mobile phone that can operate worldwide on the 5 continents using the four main GSM frequency bands.

A quadband phone includes access to the GSM 900 and GSM 1800 bands-the bands available on dual-band phones-that are used in over 150 countries worldwide. These phones also cover the GSM 1900 band-normally included in tri-band phones-and this band is used in parts of the USA, Canada and South America. In addition, a quad-band mobile phone is capable of operating on the more recently allocated GSM 850 frequency band used on the American continents.