Patent ID: 6999755

Claim:
A calling information providing system that provides a calling information of an incomplete call, said system comprising: TCAP connector that connects the calling information providing system with an incomplete call information providing apparatus; TCAP message receiver that receives the incomplete call from the incomplete call information providing apparatus through the TCAP connector; TCAP message analyzing unit that analyzes the incomplete call received by the TCAP message receiver; message informing unit that transmits incomplete call information, which is transmitted from an incoming MSC, to a controller; message creator that creates a message comprising the calling information, which is extracted from the incomplete call information, and transmitting the message to the controller; the controller controls the operation of the message creator and transmitting the message to a SMCI/SMPP message constructing unit; message searching unit that searches data such as caller's subscriber information of the incomplete call, when the message searching unit receives receivable state information of an incoming terminal; the SMCI/SMPP message constructing unit converts the format of the message into SMCI/SMPP format; message dispatching unit that transmits the message, which is transmitted from the SMCI/SMPP message constructing unit, to an SMCI/SMPP connector; the SMCI/SMPP connector connecting the calling information providing system with the message service center; and short message service center(SMSC) that receives the message from the calling information providing system and that transmits the message to the incoming terminal via incoming MSC, wherein the calling information providing system comprises a database server, which stores the incomplete call information received from the incoming MSC, and a database broker, which connects the database server with the calling information providing system, and wherein the calling information providing system further comprises an IVR server, which comprises a searching unit of incomplete call information for searching incomplete call information stored on the database server, a TTS engine for converting searched incomplete call information into a voice signal, and a callback unit for connecting a call by a caller terminal corresponding to the caller information comprised in the incomplete call information.