Abstract: An object of the present invention is to provide a management method of network device, which can implement concentrate management of a large number of network devices with a small amount of IP resources, and thereby reducing maintenance workload and facilitating network management.

Abstract: The present invention discloses a method for implementing Wide Area Centrex (WAC), wherein the long number and short number corresponding relationship of the WAC users is set and saved. The method includes: routing the call initiated by a user to a soft-switch; receiving by the soft-switch the call information the calling user sends; after determining that the calling user is a WAC user based on the calling number, the soft-switch determining the route to the called user based on the call information and completing the call. The WAC, covering the Public Switched Telephone Network (PSTN)/Public Land Mobile Network (PLMN) user and the Next Generation Network (NGN) user of different physical networks, can be implemented by using the method of the present invention without any software or hardware change to the switches in the existing network.

Abstract: The present invention relates to communication techniques, and discloses a method for the calling party to reinitiate a call in card number service, so that the calling party in card number service can conveniently release his current call and reinitiate a new call. In the present invention, the call controller instructs the calling gateway to detect the preset key combination in the session, if the calling gateway detects the key combination, then reports it to the call controller, and the call controller sends a message to the called party to release the call and releases the called party, and simultaneously sends an indication that the called party has hung up to SCP and waits for the calling party to dial again. The present invention enables the calling party to control his dial completely by himself, so as to dramatically save the time for the calling party of card number service to initiate a new call, and make the services more user-friendly.

Abstract: The present invention discloses a method for implementing Wide Area Centrex (WAC), wherein the long number and short number corresponding relationship of the WAC users is set and saved. The method includes: routing the call initiated by a user to a soft-switch; receiving by the soft-switch the call information the calling user sends; after determining that the calling user is a WAC user based on the calling number, the soft-switch determining the route to the called user based on the call information and completing the call. The WAC, covering the Public Switched Telephone Network (PSTN)/Public Land Mobile Network (PLMN) user and the Next Generation Network (NGN) user of different physical networks, can be implemented by using the method of the present invention without any software or hardware change to the switches in the existing network.

Abstract: The present invention relates to communication techniques, and discloses a method for the calling party to reinitiate a call in card number service, so that the calling party in card number service can conveniently release his current call and reinitiate a new call. In the present invention, the call controller instructs the calling gateway to detect the preset key combination in the session, if the calling gateway detects the key combination, then reports it to the call controller, and the call controller sends a message to the called party to release the call and releases the called party, and simultaneously sends an indication that the called party has hung up to SCP and waits for the calling party to dial again. The present invention enables the calling party to control his dial completely by himself, so as to dramatically save the time for the calling party of card number service to initiate a new call, and make the services more user-friendly.

Abstract: The invention discloses a method of implementing a fax in a next generation network, comprising steps of: either of two media gateways notifying a media gateway controller upon detection of a Fax Start signal when they communicate with each other; the media gateway controller sending in parallel a Modify command to the media gateways at the two ends of the communication based upon a negotiated fax codec mode, so as to modify the codec mode; the media gateways at the two ends modifying the codec mode based upon the Modify command, returning a Reply message to the media gateway controller, and starting a fax. The invention can reduce time for a fax switching and improve success ratio of a fax negotiation.

Abstract: An object of the present invention is to provide a management method of network device, which can implement concentrate management of a large number of network devices with a small amount of IP resources, and thereby reducing maintenance workload and facilitating network management.