| 摘要 |
First, communication data are transmitted from an arbitrary originating source communication device to the other plural destination communication devices. When receiving the communication data, the respective destination communication devices which receive the communication data make responses including the receiving states of the communication data to the originating source communication device, and thereafter change a next destination of the communication data into a next address according to the description contents of a destination identifier read from the memory as next address storage means so as to transmit the communication data whose destination was changed to the communication device corresponding to the next address.
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