IP TELEPHONE TERMINAL DEVICE, CALL CONTROL SERVER, VACCINE SERVER, MAINTENANCE DEVICE, IP TELEPHONE SYSTEM, CONTROL METHOD AND PROGRAM THEREOF

摘要

There is provided an IP telephone technique for monitoring the behavior of a terminal so as to easily detect virus activity including virus infection and external attack and effectively exterminate the virus, thereby suppressing the virus activity and expansion and providing a safe and stable telephone service. A detection report unit (212) by a processor (21) monitors a transmission information amount from an interface control unit (27) and reports an error message to a predetermined report destination upon detection of a transmission information amount exceeding a predetermined reference, i.e., the amount constantly deviating from the information amount to be provided to a user.