Technical Questions: What are GSM Bands 850/900/1800/1900?
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| GSM technology can work on up to
4 frequencies: 850 Mhz, 900 Mhz, 1800 Mhz, and 1900 Mhz. Some GSM phones
support all the bands or frequencies, or just a couple. A dual band
phone supports only two, usually 900/1900 or 850/1900. A tri-band phone
supports three bands, either 850/1800/1900 or 900/1800/1900. A quad-band
phone supports all GSM bands. Quad-band phones are able to work with any
and all GSM service providers. On the other hand, GSM service providers
support just a subset of all the GSM bands available. Before buying a
GSM phone, make sure the phone supports at least one of the bands that
your GSM service provider supports. |
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