Disclosed is a method for secure transfer of data for enabling roaming of the wireless device between a plurality of wireless networks. The wireless device data from an authentication server via a first channel. The authentication server sends the request for the data to an information server using a second channel. The information server generates the data bases on parameters of the wireless device and provides the data to the wireless device through the authentication server. The secure transfer of data to the wireless device enables roaming of the wireless device in a plurality of wireless networks.