Intelligent call redirection
CA 2244075 C · Owner: At&T Corp. · Inventors: Seip, Barry S.; Cockrell, Jane E.; Gudelis, Marius J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An intelligent method is disclosed for handling call redirection to an external service provider (ESP) for subsequent call processing. The method uses a network database (30) that contains information regarding calling/called party stations. The database is accessed to determine if an offering of subsequent call processing should be made and how it should be offered. In an exemplary method of handling call redirection the database is , queried to determine whether the calling party station (5) has pre-selected an ESP for subsequent call processing. In the event that the calling party station has pre-selected an ESP, the call is automatically redirected to the pre-selected ESP; no …
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 December 5, 1997 and granted August 14, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 5, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 5, 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.