Abstract: A message transmission system includes a registration accepting part for accepting a membership number, a subscriber telephone number, and a subscribed service ID; a subscriber information storage for storing membership numbers, subscriber telephone numbers, and subscribed service IDs in association with each other; a transmission request receiver for receiving a membership number of a message destination and a service ID of a Web server from the Web server or from communication terminal; a communication address converter for referring to the subscriber information storage on the basis of the received membership number and service ID to retrieve the subscriber telephone number corresponding to the membership number and service ID; and a message output part for outputting a predetermined message while designating the retrieved subscriber telephone number.

Abstract: A message transfer system including a transmission request receiver for receiving transmission request information containing a membership number being destination information, and message data, from a Web server or from a communication terminal; a message converter for converting the message data into transmitting message data in a predetermined format; a message output part for adding communication address information corresponding to the membership number to the transmitting message data, and outputting the resultant; and a restricted data detector for, when detecting predetermined restricted object data in the message data in the transmission request information, performing a control not to transmit the restricted object data.

Abstract: A message transmission system includes a registration accepting part for accepting a membership number, a subscriber telephone number, and a subscribed service ID; a subscriber information storage for storing membership numbers, subscriber telephone numbers, and subscribed service IDs in association with each other; a transmission request receiver for receiving a membership number of a message destination and a service ID of a Web server from the Web server or from communication terminal; a communication address converter for referring to the subscriber information storage on the basis of the received membership number and service ID to retrieve the subscriber telephone number corresponding to the membership number and service ID; and a message output part for outputting a predetermined message while designating the retrieved subscriber telephone number.