Service Provider Number Portability Call Control Method using Structure of Number Portability Routing Database

摘要

1. TECHNICAL FIELD OF THE INVENTION;The present invention relates to a service provider number portability call control method.;2. The technical problem to be solved by the invention;An object of the present invention is to provide a service provider number portability call control method and a recording medium using a number portability routing database.;3. Summary of Solution to Invention;The present invention includes a first step of requesting a routing number to a number portability service controller by determining that a requested number is a call of a portability block number; A second step of searching for the number portability routing database by the number portability service controller that has received the routing number; A third step of returning an identification address of the new destination exchange if the routing number corresponding to the called number has been moved to its own network, and returning the called network address if the routing number corresponding to the called number has not been transferred to its own network; And the originating exchange route to the new destination exchange if the returned address is the identification address of the new destination exchange, and route to the destination network if the returned address is the destination network address.;4. Important uses of the invention;The present invention is used in an exchange system.