FILE CONNECTION SYSTEM

摘要

PURPOSE:To realize the file renewal by the data transmission by securing the mutual connection between the charging pulse generators containing the files storing the same telephone network subscriber charging pulse production data via the public communtcation network when the charging pulse of the telephone network subscriber is altered. CONSTITUTION:When the contents of second number data file 5 of charging pulse generator 2 is latest, the second number data of the contents of second number data file 5 of generator 2 are transmitted in sequence to charging pulse generators 3 and 4 via subscriber telephone network 1 and by the telephone network circuit connection control function plus the data transmission function. Generators 3 and 4 renew the contents of second number data files 6 and 7 into the latest second number data same as file 5 based on the reception second number data.