System and method for establishing call connections using electronic text messages
CA 2441592 A1 · Owner: Internet Operator (Asia) Pte. Ltd. · Inventors: Balcerzak, Piotr; Lang, Alexander C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and system adapted to receive electronic text messages and generate connection request messages used to establish telephone call connections. The system includes a call control database (22) customer profile database (24), billing database (26) call control node (20a-c), and point of presence switch that interfaces with the PSTN (28). The electronic text messages may be electronic mail, short message service or instant text messages.
Read the whole patent
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 March 18, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 18, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 18, 2024.
- 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.