Method and apparatus for installing telephone intercom--voice messaging apparatus at doorbell for dwelling
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 18, 1999
Grant Date -
N/A
app pub date -
Mar 5, 1997
filing date -
Mar 5, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A doorbell response system is utilized in a dwelling. The dwelling includes a telephone, includes a telephone line connected to the telephone, and includes a doorbell and a pair of doorbell electrical wires which power the doorbell. The doorbell response system is powered by the pair of doorbell electrical wires and includes an auxiliary doorbell button, a speaker, a microphone, and apparatus to initiate the dialing of a telephone number. The doorbell response system also includes a connector to connect the microphone and speaker to the telephone line to enable a first person to converse over the microphone and speaker with a second person on the telephone line, and, includes apparatus for eliminating the dial tone in the telephone line so that the first person can so converse with the second person.
First Claim
Family
International Classification(s)
Cited Art Landscape
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