Voice-over-ip using h.323-enabled gr-1129 architecture
CA 2411259 A1 · Owner: Collicott, Robert B. · Inventors: Cassanova, Jeffrey P.; Zhang, Li; Zhu, Hong Gang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a communications system and method for transporting data over a communications system. The system comprises a Service Switching Point communicating with a gateway device. Communication between the gateway device and the Service Switching Point is conducted using GR-1129 protocol. The gateway device may be capable of transporting data in accordance with a voice-based multimedia protocol, including the H.323 specifications. The system may further comprise a first communication device communicating with the Service Switching Point and a second communication device communicating with the Service Switching Point. The second communication device is capable of …
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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 June 27, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 27, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 27, 2023.
- 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.