Network-initiated service change from speech to multimedia
CA 2598959 C · Owner: Nokia Corporation · Inventors: Henttonen, Jari; Mensio, Armi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method, apparatus and system for initiating a service change in a wireless system, the wireless system including an originating side and a terminating side. The invention includes initiating a modification request in a wireless system, wherein the modification request is a service change from a first mode to a second mode. The invention further includes modifying a terminal from a first mode to a second mode if the modification request is accepted by the terminal, and completing a radio bearer assignment after the modification request is accepted.
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 28, 2006 and granted April 23, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 28, 2026.
- 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.