| 摘要 |
A system and method of realizing subscriber's roaming service through the route server, employed in next generation network system which realizes cross-domain calling route through the route server, wherein when the roaming device is accessed, the register server judges whether the roaming device is a contracted subscriber or a roaming subscriber, then performs authentication, and notifies the soft switch control device to perform register operation and report location update message, for the contracted describer, the register server further needs to notify the roaming region that the subscriber has returned, and initiates location update in the roaming region, for the roaming subscriber, the register server sends register message to the home region to obtain the subscriber's service information and the location information of the contracted area, the register server of the home region registers the location information of the roaming area and reports the location update message, for the roaming subscriber-related service, the soft switch control device can accomplish connection and control according to normal procedure. The system and method of the present invention can realize subscriber's roaming service.
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