| 摘要 |
<p>A realization method, system and Service Control Point (SCP) for Virtual Private Network (VPN) intelligent service number portability. The system includes: an SCP and a switching device; the SCP includes: a memory module, an inquiry module and a call continuation module; the method includes: when number portability occurs to a number for changing the subscription network, registering a first correspondence between the number and the Location Routing Number(LRN) of the new subscription network on the SCP of the original subscription network; when the VPN service of the home SCP of the call participant is triggered by a switching device, the SCP determines whether the called party has changed the subscription network according to whether the LRN corresponding to the called number can be inquired locally, then continues the current call through the switching device according to the inquiry result. With the application of the present invention, the signaling links are saved and the problem that the short number of the user can not be resolved by the technical solution of the existing intelligent network number portability, so the present invention has great economical value and technical value.</p> |
