Abstract: The present invention discloses a route service device and a method and a system for realizing call route by the device, in which, route service device and soft switch control device are networked in a layered way, the soft switch control device is the node of the lowest layer, when the user route changes, the soft switch control device reports route information including user node to the father node; the route service device performs registration, and broadcasts the changed route information to the father node, each related route service device performs registration and broadcast by the same way; when calling across domains, the soft switch control device where the calling locates initiates inquiry toward the father node, and receives the returned inquiring result, therefore routing the call to the soft switch control device where the called locates.

Abstract: The present invention relates to a method of controlling the roam of a terminal user in the NGN network system, including: dividing the network into regions in accordance with IP address field and defining the roam type and service attribute of each IP address field when the terminal user roams to each region; defining the roam right of the terminal user in a core control device according to the roam type; when the terminal registers with the core control device from a region, IP address of the terminal being uploaded to the core control device, and the core control device obtaining the roam type of the terminal in accordance with the IP address of the terminal; then judging whether the terminal user has such roam right of this roam type, if positive, the terminal registering successfully, otherwise failing; when the terminal registers successfully, the terminal user is able to use the network service and some service attributes in the region.

Abstract: The present invention provides a device for realizing disaster recovery of soft-switch based on packet network, comprising at least two core control devices located in different places which provide control service for their respective access equipments; wherein said core control devices further include a process unit, a database unit, a share unit and a synchronization process unit which are specifically used for remote disaster recovery; said process unit and database unit are independent of the processor and the database already existing within the core control devices, and are specifically used for providing service for remote access equipments, thereby making the core control devices in different places be of mutual disaster recovery relation; said share unit is used for sharing processing ability and data; and said synchronization process unit is used for synchronizing data between the core control devices of mutual disaster recovery.

Abstract: The present invention provides a device for realizing disaster recovery of soft-switch based on packet network, comprising at least two core control devices located in different places which provide control service for their respective access equipments; wherein said core control devices further include a process unit, a database unit, a share unit and a synchronization process unit which are specifically used for remote disaster recovery; said process unit and database unit are independent of the processor and the database already existing within the core control devices, and are specifically used for providing service for remote access equipments, thereby making the core control devices in different places be of mutual disaster recovery relation; said share unit is used for sharing processing ability and data; and said synchronization process unit is used for synchronizing data between the core control devices of mutual disaster recovery.

Abstract: The present invention relates to a method of controlling the roam of a terminal user in the NGN network system, including: dividing the network into regions in accordance with IP address field and defining the roam type and service attribute of each IP address field when the terminal user roams to each region; defining the roam right of the terminal user in a core control device according to the roam type; when the terminal registers with the core control device from a region, IP address of the terminal being uploaded to the core control device, and the core control device obtaining the roam type of the terminal in accordance with the IP address of the terminal; then judging whether the terminal user has such roam right of this roam type, if positive, the terminal registering successfully, otherwise failing; when the terminal registers successfully, the terminal user is able to use the network service and some service attributes in the region.

Abstract: The present invention discloses a route service device and a method and a system for realizing call route by the device, in which, route service device and soft switch control device are networked in a layered way, the soft switch control device is the node of the lowest layer, when the user route changes, the soft switch control device reports route information including user node to the father node; the route service device performs registration, and broadcasts the changed route information to the father node, each related route service device performs registration and broadcast by the same way; when calling across domains, the soft switch control device where the calling locates initiates inquiry toward the father node, and receives the returned inquiring result, therefore routing the call to the soft switch control device where the called locates.