DATA COMMUNICATION SYSTEM WHICH INCLUDES AN INFORMATION PROCESSING TERMINAL AND A DATA COMMUNICATION APPARATUS CONNECTED TO EACH OTHER VIA AN INTERFACE AND IN WHICH THE DATA COMMUNICATION APPARATUS EXECUTES DATA COMMUNICATION IN ACCORDANCE WITH AN INSTRUCTION FROM THE INFORMATION PROCESSING TERMINAL

摘要

In a data communication system in which an information processing terminal and a data communication device are connected to each other via an interface, and the data communication device performs data communication in response to an instruction from the information processing terminal, the data communication device is used in the indicated data communication. An error call is determined and the information processing terminal is notified of the determination of this error call. The information processing terminal prohibits the data communication instruction to the address corresponding to the error call based on the determination notification of the error call.