Message transmission equipment

Abstract

Abstract PURPOSE:To facilitate the comfirmation whether a message is received by a terminal device being a last destination or not by building the incoming confirmation information of the message in a packet for return, for example, and transmitting the packet for return building the incoming confirmation information in to the terminal device of a transmission origin when the incoming confirmation information from the terminal device being the last destination. CONSTITUTION:A device is constituted by providing a returning means returning the incoming confirmation information of the message to the transmission origin through a second transmission line 13 when the incoming confirmation information of the message is received through a first transmission line 15a. When the transmission packet transmitted by the terminal device 17a being the transmission origin cannot be received by the terminal device 17b being the last destination, the transmission packet is transmitted again by the terminal device 17a. Thus the certainty of transmission can be raised.

Inventors

• 👤 Toshimasa Tanaka
• 👤 Yoshiaki Iwakuma
• 👤 Makoto Hayashi

Bibliographic Details