METHOD FOR CONTROLLING A SUBSCRIBER IDENTITY MODULE (SIM) IN MOBILE RADIO TELEPHONE SYSTEMS

摘要

The invention relates to a method for controlling a subscriber identity module (SIM) in mobile radio telephone systems. The invention provides that the mobile radio network sends one or more determined control values to the subscriber identity module. Said control values trigger certain actions or processes inside the subscriber identity module, whereby certain random values (control RAND's) which are sent to the subscriber identity module by the mobile radio network for the regular authentication are used as control values.