CHANGING OF SUBSCRIBER IDENTITY AT A MOBILE TERMINAL USING A CANCEL LOCATION MESSAGE.

摘要

A subscriber identity is changed for a mobile terminal (10) through an instruction being provided to the mobile terminal (10) to detach from a first mobile communication system (18, 30), to which first mobile communication system the mobile terminal is attached using a first subscriber identity, where the instruction is also an instruction to change to a second subscriber identity associated with a second mobile communication system (24, 38). The mobile terminal (10) receives the instruction via the first mobile communication system (18, 30), detach from the first mobile communication system attaches to the second mobile communication system using the second subscriber identity. Both subscriber identities are already provided locally in the mobile terminal (10), for instance being stored in the memory (60) of a smart card (12) loaded inside the mobile terminal (10).