| 摘要 |
PURPOSE:To receive the dial signal in the form of the caller identification signal for the digital conversion when the automatic answering telephone set changes from the answer mode to the message recording mode, and then to carry out the writing into the memory device as well as perform reading out of the memory for recording. CONSTITUTION:Transmission signal S5' containing the record request signal and the identification signal transmitted from the caller after end of the answer message is applied to decoder 11 via the filter, the integrating circuit and the waveform shaping circuit each and furthermore to comparator circuit 13 via gate 12 which if turned on then. After decision of the record request signal at circuit 13, signal S7 is transmitted via monostable multivibrator 14 to set memory device to the original state. The caller's telephone unmber sent from the caller is identified every digit at data detector 18 and via the filter and others to be memorized in sequence in the addresses designated by writing circuit 16. The telephone number thus memorized is read out from memory 17 after recording the message and then recorded to printer 23. |
