Wireless Glossary (U)

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UMTS (Universal Mobile Telecommunications System) a third-generation wireless communications technology and the next generation of GSM (Global System for Mobile Communications). UMTS is a wireless standard approved by the International Telecommunications Union (ITU) and is intended for advanced wireless communications. UMTS promises high-speed mobile data (up to 2 Mbps) and advanced multimedia capabilities such as streaming video.

Universal Mobile Telecommunications System see UMTS.

Unlock Code the digits you enter to unlock a wireless device.

Upgrade some service providers will allow you to upgrade your phone to a newer model after a period of time, this usually involves signing a contract again.

URL (Uniform Resource Locator) a unique name or number that specifies the location of a file on the Internet. A URL consists of a protocol, such as http:// that specifies a web page, followed by a server or path name. For example, the URL for the Cellphones.ca web site is http://www.cellphones.ca

USB (Universal Serial Bus) a plug-and-play interface between a computer and add-on devices (such as keyboards, phones and PDAs). With USB, a new device can be added to a computer without having to add an adapter card or even having to turn the computer off. USB supports a data speed of 12 megabits per second and is now being incorporated in some cell phones which is useful for synchronizing information with a computer or downloading ringtones.

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