http://www.jd.com/compare/1237968-11...0-1285434.html 作者: RLacroix 时间: 2015-4-5 12:48
All networks in Canada cuurently support one or more of GSM / AWS / UMTS / HSDPA / LTE . North American GSM uses 850/1900 MHz , UMTS/HSDPA 850/1900Mhz, LTE 1700/2600, AWS 1700/2100 frequencies, which are not compatible with phones used in most other parts of the world except USA.