Methods for processing operator services system calls
CA 2323908 C · Owner: Telcordia Licensing Company Llc · Inventors: Downum, Wesley; Berkowitz, Renee
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
To distinguish multiple operator services systems (OSS) and provide services within a single local area telephone network originating end, telephone offices include database tables that correlate end user telephone numbers to selected OSS providers. When an OSS-type call is placed to an originating end office (OEO) the OEO uses the database to, correlate the calling party's number to a code corresponding to the OSS provider. In one embodiment, this code is used to populate at least part of the ISUP called party number digit field of the SS7 signaling protocol. This number, as well as the original called party number are transmitted to the switching network which relies on the called party …
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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 January 3, 2000 and granted April 22, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 3, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 3, 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.