Automatic telephone answering apparatus

Details Automatic telephone answering apparatus Automatic telephone answering apparatus

1984-12-21

1986-09-02

Dwyer, James L.

179 613, 179 616, H04M 165

Patent

active

046097830

ABSTRACT:
In an automatic telephone answering apparatus, a ringing tone generated upon reception of an incoming call is detected by a ringing tone detecting means, a pulse or leakage flux generated upon reception of the incoming call is detected by a pulse detecting means, and a telephone line is engaged when the ringing tone detecting means and said pulse detecting means simultaneously generate detection signals, thereby operating the automatic telephone answering apparatus.

REFERENCES:
patent: 2658107 (1953-11-01), Zimmermann
patent: 3548102 (1970-12-01), Schaum et al.

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