Patent ID: 6253081
Filing Date: 2001-06-26
Classification: H04Q,H04W

Abstract:
A method for providing roaming service in a telecommunications system that is partially configured for local number portability, comprising the steps of:receiving a registration request from a roaming cellular mobile radiotelephone at a host mobile switching center;generating a notification message for the roaming cellular mobile radiotelephone;if the host mobile switching center is configured for local number portability, including in the notification message an indication that the host mobile switching center is configured for local number portability;transmitting the notification message from the host mobile switching center to a home location register associated with the roaming cellular mobile radiotelephone;at the home location register, checking the notification message to determine whether host mobile switching center is configured for local number portability; andif the host mobile switching center is configured for local number portability, transmitting a response message from the home location register to the host mobile switching center instructing the host mobile switching center to register the roaming cellular mobile radiotelephone for automatic roaming service.