Unauthorized access ( UMA ) access to service data and voice cellular mobile on the technology spectrum, non-authorized provides, which includes Bluetooth and ( 11 - 802 ), Wi-Fi . A phone UMA whenever around or out is from the cellular network like GSM, CDMA). CDMA, etc. uses, and, if in range, like home or work is automatically to local networks, Wi-Fi with the ability to UMA altered . The possibility to use wireless, of all the services in the All-Time provides, which includes voice, messages, pricing, and service data . This method mixed the possibility of full mobility ( ability to relocate ) provides while better coverage, speed, data, higher, and service costs less at the time of using the network in areas of high-density areas, the population reduced and the need for towers in residential areas with a population of non-dense also.