| 摘要 |
When a cell phone attempts a roaming connection, it is connected to a roamed mobile communication network, without need for user's effort to perform a connection operation. When a home mobile communication network managed by a telecommunications carrier in contract with the user of the cell phone receives location registration information indicating that the cell phone has registered a location with the roamed mobile communication network, it transmits to the cell phone, priority access point information containing information about roamed mobile communication networks providing a packet communication service. The cell phone searches the roamed mobile communication networks and requests location registration with a roamed mobile communication network contained in the access point information received from the home mobile communication network.
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