A multi-system subscriber identification module

A method for storing the user symbols and user information special user distinguishing module, therefore which uses a wireless service system, one of user symbols symbolizes (TMSI) is a user anonymous temporary mobile user, the alias using anonymous used leads, user to prevent determining orders transmission leads user code in radio path. The leads user code the condition of conversion information's, TMSI a part is not connected to the it is used to distinguish user terminal according any number, comprising obtaining on the distribution of number's remote telecommunication network entity, the invention containing SIM roam to from a wireless system to the system, is used to differentiate different system different TMSI by TMSI predetermined Piece, which is connected on the mobile wireless system in the form of unified lights with assigned the mobile wireless system of TMSI is realized.