US Patent 8626164 Global platform for managing subscriber identity modules

A method of operating a mobile wireless network comprising: receiving, by a provisioning server, a signal from a mobile wireless network specifying a location of a first mobile device having a first International Mobile Subscriber Identity (IMSI) and operating in the mobile wireless network under a first condition, the mobile wireless network including a plurality of mobile switching centers (MSCs) and a plurality of mobile devices operating in the mobile wireless network; provisioning the first IMSI in the first HLR based on a state transition rule from a first provisioning state to a second provisioning state; provisioning a second IMSI in the first HLR based on the state transition rule from a third provisioning state to the first provisioning state; and transmitting data identifying the second IMSI to the first mobile device to allow the first mobile device to operate in the mobile wireless network under a second condition.