Patent ID: 6360092
Filing Date: 2002-03-19
Classification: H04L,H04M,H04W

Abstract:
A method for controlling access by a device to a communication service provided by a telecommunication network, said device having a subscriber identification module storing identification data that is used to access said service, comprising the steps of:storing first and second sets of identification data in said subscriber identification module; initially accessing said service and conducting communications via said service using said first set of identification data stored in said module; subsequently blocking access to said service via said first set of identification data in response to a specified condition; detecting whether access to said service via said first set of identification data is blocked and, if so, establishing communication with said network using said second set of identification data stored in said module and retrieving a code for unblocking access to said service; and resuming access to said service and conducting communication using said first set of identification data.