Refurbished Siemens A65(Unlocked)

Refurbished Siemens A65(Unlocked)

In mobile phones, dual-band and tri-band refer to functionality that allows a cell phone to support either two or three frequency bands out of the four major GSM bands, and quad-band phones will work with all four of the major GSM (TDMA) 850/900/1800/1900 MHz. frequency bands.

GSM 900/1800 bands work in Europe, Africa, Asia, and Brazil

GSM 900/1800/1900 bands will work on at least one network in most countries around the world except for some networks that only support 850MHz(ATT in USA) 

GSM 850/900/1800/1900 bands will work on at least one network in most countries around the world