Emergency call completion for voip based on location of call originator
CA 2555686 C · Owner: Vonage Holdings, Corp. · Inventors: Holder, Louis; Citron, Jeffrey; Welenson, Gregory L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Emergency calls placed from telecommunication devices connected to a data network are completed to the appropriate public safety answering point (PSAP). In one embodiment of the present invention a method for completing an , emergency call comprises receiving a call from a device on a data network the , call being destined for an emergency service the device having a known , physical location obtaining a telephone number of an emergency call center that handles emergency calls for the physical location of the device and , routing the call to the emergency call center using the assigned telephone number.
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 February 10, 2005 and granted April 28, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 10, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.