Method and apparatus for returning a false special information tone for an incoming telephone call
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 30, 2003
Grant Date -
May 22, 2003
app pub date -
Nov 20, 2001
filing date -
Nov 20, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus (10) for returning a false signal substantially similar to at least a first portion of a special information tone (SIT) after a device receiving an incoming telephone call puts the telephone line (11) in an off-hook condition is provided. The apparatus includes: a power distribution member (30); a mode selection member (28), a programmable oscillator (18); an off-hook detector (14); and, a controller (12). The method includes the steps: selecting a mode of operation from a group of multiple operating modes; detecting an off-hook condition in the telephone line; generating a false signal according to the selected SIT and the selected mode of operation; and, sending the false signal over the telephone line in response to the incoming telephone call once the off-hook condition is detected.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully