MULTIMEDIA MESSAGE INTERWORKING APPARATUS AND METHOD USING MM4 PROTOCOL, PARTICULARLY FOR CONVERTING A SIMPLE MAIL TRANSFER PROTOCOL MESSAGE INTO AN MM4 PROTOCOL MESSAGE OF IMT-2000 AND AN MM4 PROTOCOL MESSAGE INTO A SIMPLE MAIL TRANSFER PROTOCOL MESSAGE

摘要

PURPOSE: A multimedia message interworking apparatus and method using an MM4 protocol are provided to operate a multimedia messaging service system using an MM4 protocol in a multimedia messaging service system employing an SMTP(Simple Mail Transfer Protocol). CONSTITUTION: A transmission message converter(21) receives an SMTP message from a wired/wireless Internet service network and converts it into an MM4 message. An MM4 message transmitter(22) receives the MM4 message from the transmission message converter(21) and transmits it according to an MM4 protocol. An MM4 message receiver(24) receives the MM4 message from an IMT-2000 network. A reception message converter(25) receives the MM4 message from the MM4 message receiver(24) and converts it into an SMTP message. A media contents converter(23) converts a format of media contents in response to a request of the transmission message converter(21) and the reception message converter(24). An SMTP interface(26) and an MM4 interface(27) perform a transmission/reception packet relay function according to a TCP/IP(Transmission Control Protocol/Internet Protocol).