| 摘要 |
PURPOSE: To set a time of a system clock of a private branch exchange automatically. CONSTITUTION: A system restart message signal is generated at the end of system restart by a private branch exchange 2 and sent to a maintenance terminal equipment 1. The maintenance terminal equipment 1 reads a current time from a master clock and generates a system time setting signal and sends it to the private branch exchange 2. Upon the receipt of the signal, the private branch exchange 2 sets the time to the system clock based on the time information in the system time setting signal to set the clock of the private branch exchange 2 automatically. |
