UMAN
Unlicensed Mobile Access Network

An Unlicensed Mobile Access Network is derived by utilizing existing unlicensed radio technologies such as WiFi (Wireless Fidelity) and Bluetooth to extend GSM and GPRS services into customer sites. This is achieved by introducing a UNC (Unlicensed Network Controller) into the network which connects the existing GSM and GPRS core network, through a broadband IP network, to the Access Point situated in the customer site. As such, customers can switch between the traditional GSM / GPRS network and the UMAN as the move into and out of coverage. Although the title UMA is often still used, the technology is now termed GAN.