Patent ID: 7817999
Filing Date: 2010-10-19
Classification: H04W

Abstract:
1. A method for implementing roam restriction, a list of areas where a terminal is allowed to roam is set up, said method comprising: receiving, by a mobile switching center, a paging response from the terminal, wherein the paging response carries information of at least one cell currently activated by the terminal; determining, by the mobile switching center, whether the information of the at least one cell currently activated by the terminal carried in the paging response is included in the list of areas where the terminal is allowed to roam, if yes, establishing a calling service connection; otherwise, disconnecting the service connection; receiving, by the mobile switching center, an assignment complete message, wherein the assignment complete message carries information of at least one cell currently activated by the terminal; and determining, by the mobile switching center, whether the information of the at least one cell currently activated by the terminal carried in the assignment complete message is included in the list of areas where the terminal is allowed to roam, if yes, processing the terminal's called service, otherwise, disconnecting the service connection.