The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 23, 2008
Filed:
May. 21, 2002
Jose Costa Requena, Helsinki, FI;
Esa Jalonen, Espoo, FI;
Jose Costa Requena, Helsinki, FI;
Esa Jalonen, Espoo, FI;
Nokia Corporation, Espoo, FI;
Abstract
The invention relates to a method for communicating codec related information between a first mobile communication device (UE) and a second mobile communication device (UE) via a network. The codec related information relates to operational modes of an adaptive multi-rate (AMR) codec. The information is transmitted by the first mobile communication device (UE) to the second mobile communication device (UE) in a form of a binary mask in an SDP (Session Description Protocol) body () of a SIP (Session Initiation Protocol) INVITE message (), a value of 1 indicating the operational modes which are supported by the first mobile communication device (UE). In the event that the network does not support at least one of the operational modes that the codec related information indicates as being supported the network modifies the codec related information accordingly.