METHOD AND SYSTEM FOR TRANSMITTING SMS FOR VOIP SERVICE SUPPROTING MULTI-PROTOCOL

摘要

A method and a system for transmitting short messages in a VoIP network supporting a multi-protocol are provided to offer the SMS(Short Message Service) using existing routing equipments as they are, regardless of VoIP types. An SMS transmission system in a VoIP network supporting a multi-protocol comprises an SMS interworking server(410) and a soft switch(400). The SMS interworking server(410) receives SMS data from an originating terminal through the first RTP(Real Time Protocol) media channel opened according to the first call setup and transmits the SMS data to a destination terminal, based on the destination number contained in the first call connection request signal or the SMS data. The soft switch(400), located in the VoIP network, mediates the first call setup between the originating terminal and the SMS interworking server(410), based on the first call connection request signal received from the originating terminal. The first call connection request signal contains an identifier or a number that identifies the SMS interworking server(410).