Automatic telephone answering machine with ring signal responsive mode changing arrangement
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United States of America Patent
Stats
-
Nov 5, 1991
Issued Date -
N/A
app pub date -
Nov 30, 1989
filing date -
Dec 24, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An automatic telephone answering machine of the kind employing a microcomputer for switching from one mode of operation to another is arranged to switch from the 'stop' mode to the 'automatic answer' mode in response to recurring ring signals transmitted during an incoming phone call, provided those signals meet criteria such as duration of ring, length of interval between successive rings, and a minimum period of recurring ring signals. The mode switching arrangement causes the machine to switch to the 'automatic answer' mode and then answer the call during the same phone call to enable the caller to confirm by receipt of the machine's outgoing announcement that the mode switch has occurred.
First Claim
Family
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Cited Art Landscape
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