Patent ID: 6487425
Filing Date: 2002-11-26
Classification: H04W,Y02D

Abstract:
In a GSM wireless network including at least one mobile station and one mobile switching center (MSC), said MSC configured to communicate with said mobile station using A-interface messages, said MSC further adapted to support first and second MSISDN numbers, said first MSISDN number associated with a normal operating mode and said second MSISDN number associated with a limited operations low power mode of said mobile station, a method of supporting a switch from the limited operations low power mode to a normal full power operating mode of the mobile station, the method comprising steps of:causing the mobile station to inform the network that it is entering into said limited operations low power mode; causing the mobile station to enter said limited operations low power mode; detecting when a call is made to the second MSISDN number; and formatting and sending an A-interface message to the mobile station requesting that it switch to a normal operating mode.