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Our online glossary is here to help you make sense of the terminology used in the cell phone industry. It covers mobile technologies, such as 3G and 4G, and even includes a bit of information on smartphone operating systems and the companies that make the cell phones and other mobile technology devices we all use.

What is "tri-band"?

Tri-band generally refers to a device that supports 3 different GSM frequency bands. A tri-band device will work in most parts of the world where there is GSM service, though not as well as would a quad-band device.

Also known as: "triband"

See Also: GSM, quad-band

Referred to by: dual-band, frequency band, GSM

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