MULTI-VIRTUAL SUBSCRIBER IDENTITY MODULE COMMUNICATION TERMINAL

Communication terminals capable of implementing each of a set of multiple virtual subscriber identity modules by executing software code, each virtual subscriber identity module relating to a subscriber identity and being capable of participating in a data exchange to authenticate that identity. The terminal includes a communication subsystem for communicating with a network in accordance with a subscriber identity relating to a cooperating one of the virtual subscriber identity modules; and a subscriber identity subsystem configured for interfacing between the virtual subscriber identity modules and the communication subsystem so as to enable each of the virtual subscriber identity modules to cooperate with the communication subsystem in accordance with its subscriber identity; the subscriber identity subsystem being configured to automatically signal the communication subsystem when the set of virtual subscriber identity modules capable of being implemented by the terminal changes.