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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 "1xRTT"?

1xRTT is a data transmission system used on CDMA networks that allows for connetion speeds of up to a theoretical limit of 144kbps in most implementations. Real world usage is typically much slower, though, coming in at somewhere around 80kbps. 1xRTT is often referred to as a 2.5G technology like GPRS, though it is officially a 3G technology according to the ITU's IMT-2000 spec.

See Also: CDMA, kbps, GPRS, 3G, ITU, 2.5G

Referred to by: 3G, CDMA, EV-DO, MMS, PoC

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