gsm dual band/tri band

Kirsten1982 | 16:48 Tue 14th Dec 2004 | How it Works

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what is the difference?

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You need a tri-band phone if you want to use it in the USA and a couple of other places. A dual band phone will work in UK & Europe, Africa etc.

Thus youcan use a tri-band phone anywhere.

Question Author

thank you

Tri-bands work almost everywhere. They do not work in Japan or Argentina, and probably some other places as well

Kev_UK

Most cellphones sold in the UK are dual band.

800/900 MHz & 1800 MHz

When I was in Canada & USA I bought a tri-band phone,

800/900 MHz, 1800 MHz & 1900MHz (1900MHz the frequency used in USA/Canada)

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