METHOD AND APPARATUS FOR INFORMING CHANGE OF TELEPHONE NUMBER

摘要

A method and an apparatus for providing a number information service are provided to provide a number information service even in case that a user does not confirm the history of the number. A user(702) opens 01C for traffic from a business carrier C(S702). The telephone number is moved from business provider C to business provider B(S704). The user changes the telephone number from the business provider B to 01B(S706). The user requests 01C number guide subscribe to business provider A(S710). The business provider A requests 01C telephone number guide service(S712).