| 摘要 |
Where the ISDN subscriber terminal performs data transmission, the prefix transmitting section in the terminal transmits the prefix to a packet subsystem in advance. Based on this transmission, the modem pool apparatus designating section in the packet subsystem determines the corresponding modem pool apparatus to establish a communication path between the modem pool apparatus designating section and the modem pool apparatus. Further, the selected modem pool apparatus establishes a communication path to the start-stop transmission terminal. In accordance with the above sequence, a communication path of the ISDN subscriber terminal-packet subsystem-modem pool apparatus-the start-stop transmission terminal is established, thereby allowing the data communication between the ISDN subscriber terminal and start-stop transmission terminal to be realized.
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