Method and process to validate displacement, international mobile phone users

摘要

"METHOD AND PROCESS TO VALIDATE DISPLACEMENT, INTERNATIONAL MOBILE USERS". The present invention provides a method for validating shifters, particularly international shifters, in order to reduce fraud, wherein the process applies to mobile phones and PCS phones operating under various standards, such as Mobile Phone Service (AMPS), Call Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), etc., by preventing automatic service authorization for displaced persons, while still allowing valid displacers to access the visited system network.