SYSTEM FOR PROVIDING NUMBER MOBILITY USING NUMBER MOBILITY CONFIRMATION DATABASE AND OPERATING METHOD THEREFOR

摘要

PURPOSE: A system for providing a number mobility using a number mobility confirmation database and an operating method therefor are provided to reduce the delay of a call connection and reduce the load of the number mobility database by separately operating the number mobility database and the number mobility confirmation database. CONSTITUTION: A number mobility confirmation database(13) stores information about whether a telephone exchange number is moved. A number mobility database(4) stores current telephone exchange number information of the telephone exchange number which is moved. A client management database(11) stores subscriber information. A switch(2) connects a telephone exchange number in which a call setup is request to a called terminal having a current telephone exchange number according to the request of the call setup from a subscriber terminal(3) by using the client management database(11), the number mobility confirmation database(13) and the number mobility database(4).