国家名称 该国家GSM工作频率列表 (Multiple lines of frequencies indicate different sets of frequencies being used by different carriers.) Approx. number of GSM cell phone carriers using listed frequencies Afghanistan GSM 900 1 carrier GSM 900/1800 1 carrier Albania GSM 900 1 carrier GSM 900/1800 1...
CDMA carriers include Verizon, Sprint, Virgin Mobile and Boost Mobile. A GSM phone cannot be activated on a CDMA network and vice versa. To begin using an unlocked phone, a carrier must be chosen, and, for GSM carriers, a SIM card purchased for that carrier. ...
PAY AS YOU GO PHONE PLANS Flexible wireless plans for everyone. We realize that not all plans are created equal and we each use our wireless devices for different reasons. That is why we offer a wide range of plans to fit anyone's needs. ...
That's why you'll see carriers offering more on-demand quality of service upgrades. For example, imagine that you're waiting for the kids to finish their shopping at the mall and you want to watch a football game on your phone. You've already reached your data limit; plus, there are ...
Carriers used D-AMPS (Digital-Advanced Mobile Phone Service), a digital variant of AMPS built on Interim Standard (IS)-136 for TDMA networking, which was itself an evolution of the original 2GL D-AMPS standard, IS-54, from the Electronics Industries Association /Telecommunication Industry ...
Due to their lack of network dependence and ease of usage with multiple carriers, GSM iPhones are more adaptable and portable than CDMA (Code Division Multiple Access) iPhones.Make sure the phone is functional with the GSM network of the carrier you want to use before attempting to unlock a ...
dell-streak-mini-5-android-unlocked-quad-band-gsm-cell-phone---wi-fi--gps--5-mp--autofocus--dual-led Availability: Usually ships the next business day Sale Price: $794.99 Qty:Product Description Condition: Brand New. 2G Network Standard: Quad Band 850/900/1800/...
Following the news earlier that the iPhone 4S won't be available as an unlocked device until November, it's also worth noting that only customers on GSM carriers will be able to unlock the 4S. Apple touted the iPhone 4S as a "world phone" capable of running on both GSM and CDMA networ...
Carriers employed D-AMPS (Digital-Advanced Mobile Phone Service), a digital version of AMPS based on Interim Standard (IS)-136 for TDMA networking (itself an evolution of the original 2GL D-AMPS standard, IS-54) from the Electronics Industries Association/Telecommunication Industry Association. It...
and other prepaid carriers. This phone will NOT work with any CDMA Networks such as Verizon, Sprint, and US Cellular. A SIM card and service plan must be purchased separately. Network compatibility listed here is for reference only and does not guarantee phone compatibility. Please ensure to ch...