A system and method to discriminate call content type
CA 2308808 A1 · Owner: Pickens, Keith S. · Inventors: Heilmann, Craig; Beebe, Todd; Schmid, Greg
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system and method for discriminating call content types for individual telephone lines at a plurality of user sites outside of a Public Switched Telephone, Network (PSTN) is described. The system may include: a database containing security, rules for each of a plurality of extensions the rules specifying actions to , be taken based upon a call content type of the call on the extension wherein the call , content type is, determined at the user sites outside the PSTN; and a line sensor within the user sites, outside the PSTN for determining the call content type of the call. The line sensor, continuously checks the call content type to determine if the call content type changes. For …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed May 18, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 18, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 18, 2022.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.