Machine answer detection

Details Machine answer detection Machine answer detection

1993-03-01

1994-12-06

Dwyer, James L.

Telephonic communications

Supervisory or control line signaling

Signal receiver

379 92, 379100, 379216, 379104, 379 69, 379 97, H04M 100

Patent

active

053717872

ABSTRACT:
A detector to indicate if a telephone call was answered by an answering machine or a live person includes (to analyze frames): a click detector; a ring detector; a voice detector; an energy detector; and a controller. The controller routes to: a voice analyzer if voice occurred; a ring analyzer if ring started, continues, or ended; a noise detector if there is neither ring nor voice; a click analyzer if a click occurred; an answer analyzer if ring did not start in the frame; and a silence analyzer. The noise detector detects noise; the ring analyzer detects start time, end time, and length of ring; the click analyzer detects click time; the answer analyzer detects call answer time; the silence analyzer detects silence and the time of predetermined lengths of silence; and the voice analyzer detects the first frame of voice and routes to an on-first voice analyzer or to an after-first voice analyzer. Lastly, the on-first voice analyzer determines if the call was answered by an answering machine and routes to a reporter and the after-first voice analyzer determines if the telephone call was answered by an answering machine or a live person and routes to the reporter.

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