TELEPHONE TERMINAL, TELEPHONE TERMINAL MANAGING DEVICE, AND TELEPHONE COMMUNICATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To synchronize the time of a telephone terminal with that of a telephone terminal managing device while preventing a network load from increasing and also suppressing the processing load of the telephone terminal managing device.

SOLUTION: The telephone terminal managing device comprises a synchronous reference clock for clocking time; a process request means for intermittently transmitting a process request packet whose main function is other than time synchronization to the telephone terminal; and a time information transmission means for adding time information based on the clocking time of the synchronous reference clock to the packet when transmitting the process request packet. The telephone terminal comprises an internal clock for clocking time supplied to the inside of the terminal; a processing response means for performing the reception processing of the process request packet; and a time information reception means for resetting the internal clock to the time of time information added to the process request packet.

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