Posted in UncategorizedUWB & UMAby beewax•December 2, 2005•0 Proponents of ultrawideband (UWB) and WiMAX are showing interest in getting their wireless technology incorporated into unlicensed mobile access (UMA) technology…..UMA allows a mobile handset to use various technologies, typically GSM and WiFi, to make calls. The handset automatically switches between the different networks, the aim being to offer the user the cheapest available connection. beewax More by beewax