UMTS

Universal Mobile Telecommunications System, is a 3G cellular network technology that uses WCDMA (Wideband Code Division Multiple Access), which was operating in 25 countries as of mid-2005. The transmission rates range from a theoretical 384K bit/sec. for phones that are moving up to 2M bit/sec. for stationary devices.

UWB

Ultrawideband, also called digital pulse, is a wireless technology for transmitting digital data over a wide swath of the radio frequency spectrum with very low power. Because of the low power requirement, it can carry signals through doors and other obstacles that tend to reflect signals at more limited bandwidths and a higher power. It can carry large amounts of data and is used for ground-penetrating radar and radio locations systems.

VOIP