CDMA some form of digital technology, wireless that transfer voice and data simultaneously on a frequency Mexia makes . CDMA, in fact, second-generation (2G) mobile phones is that in the countries, Canada, America, East Asia and Latin America is used . Nowadays, most telecom companies that the technology of CDMA was used in the migration to the new technology, the transfer of broadband information with the name of the 1xRTT .