A system for connecting calls on physically distinct servers on an advanced intelligent network
CA 2238169 C · Owner: Meyer, Dennis Frederick · Inventors: Meyer, Dennis Frederick; Martz, Basia Maria
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A bridge connection is made between interfaces on physically distinct telecommunication servers such that the two ends of the bridge can be used to connect existing calls that are terminated on each of the servers. To provide the bridgeconnection a call using a standard outgoing T1 trunk on one of the servers is made through the public switched telephone network (PSTN) to an incoming T1 trunk on the other server. The servers reserve a special directory number for such calls. When a bridge connection is required one of the servers is queried for its special directory number. The other server is then instructed to make a call to that number. When the called server recognizes the incoming call …
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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 May 21, 1998 and granted October 30, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 21, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 21, 2020.
- 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.