BUSINESS METHOD AND SYSTEM FOR PROVIDING SHORT MASSAGE SERVICE BY DYNAMIC VIRTUAL PHONE NUMBER AND COMPUTER READABLE MEDIUM HAVING STORED THEREON COMPUTER EXECUTABLE INSTRUCTION FOR PERFORMING THE METHOD

摘要

PURPOSE: A short message service providing method by dynamic virtual numbers, its system and a recording medium readable by a computer having a program for implementing the same is provided to protect a privacy of a caller by displaying a virtual number of the caller on a terminal of a callee. CONSTITUTION: A service user creates a short message through an input unit of a terminal and transfers it with a callee number including a reservation number to the callee(S200). The short message is transferred to an external short message unit after passing through a short message processing system according to the reservation number constituting a virtual number(S210). It is checked whether the caller has been subscribed for the short message service on the basis of user information stored in a user information database of the external short message unit(S220). If the caller has not been subscribed for the short message service, information of the caller is obtained from a user information database of plural mobile communication providers to automatically register the caller as a subscriber of the service(S230). If the callee's virtual number includes only the reservation number, the external short message unit considers the message to be sent to an arbitrary recipient and switches to a stage for determining a recipient by a matching system(S240). If the callee's virtual number includes the reservation number and a serial number, the callee's virtual number is replaced with an actual number of the callee with reference to a virtual number matching table of the caller(S250). If an actual number of the caller has been registered as a virtual number in a virtual number matching table of the callee(S260), callback number information transferred together with the short message by the caller is converted into a virtual number(S270). The short message content of the caller is converted according to information of the callee previously set by the caller(S280). When the caller number, the callee number and the short message conversion are completed, the converted information is transferred to the terminal of the callee(S290).