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GSM Mobile Phones
GSM mobile phones is about the only way to go if you frequently travel outside the U.S. or if you live outside the U.S. Either way, the range of international cell phones available to you is both impressive but perhaps mind-boggling. Here's the lowdown. [MORE...]
GSM stands for Global System for Mobile Communication and is one of two mobile phone network types. The other is CDMA, the more common U.S. standard.
There are many great reasons to buy GSM mobile phones. However, using a GSM phone in the U.S. effectively restricts you to AT&T Wireless and T-Mobile, the only two major phone carriers that provide GSM service in the U.S.
One of the reasons you may want a GSM phone is so you can use it overseas. If so, for maximum flexibility, consider a quad-band phone to ensure compatibility with any of four GSM frequencies globally.
You can also opt for a dual-band phone or a tri-band phone if usage will be limited to specific countries; just be sure the phone matches the country GSM frequency.
This is a clear advantage that allows you to use the phone on a pay-as-you-go basis and also transfer the SIM card from one phone to another as needed.
Some phones come with dual SIM card options, which means you can have two phone numbers ringing on one phone.
The growing availability of unlocked cell phones in the U.S. suggests an upward trend in consumer demand for the freedom to select from a wider range of phones - not just ones offered by a specific cellular carrier.