A system and method for establishing long distance voice communications using the internet
CA 2198024 C · Owner: Softalk Inc. · Inventors: Mahammadi, Mansour; Lang, Alexander Christopher
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus and a method for completing long distance telephone calls over the, Public Switched Telephone Network (PSTN) using an automated Internet Operator are, disclosed. The apparatus includes a long distance service provider node connected to the, Internet and a call connection control computer connected to the Internet and interfaced to, a toll switch connected to the PSTN. The method permits a calling party to request the, automated Internet Operator to complete long distance call connections by connecting to, the long distance service provider node and identifying himself. The caller completes a, call request form which is uploaded to the long distance service provider node …
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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 February 19, 1997 and granted February 6, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 19, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 19, 2019.
- 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
Timeline From CIPO dates
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.