(57) Abstract (Modified) Objective As expulsion the silent telephone and the like, the caller?The semiconductor memorandum which is used and others as the one for business matter messageImprovement of efficiency of ri is assured. Constitution Silent when the caller has not inserted business matter messageMemory section 2 in order consecutively to store over predetermined timeVis-a-vis 2 and the memory section, the caller business matter message insertingIt is and when silent state it occurs over predetermined time, detecting thatThe silent detector 23 in order to do and this silent detector detectsTo output the control signal on the basis of the silent signal which it does, semiconductor memory- Way the silent signal is not recorded vis-a-vis 19, distinction controlControl section 40 in order to do provides. Business matter metsuse of callerTo decide the presence of ji, with that semiconductor memory systemWhen there is no business matter message by managing, recordThat try is not the re.
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