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:
Mar. 30, 2010
Filed:
Aug. 14, 2000
Tuija Hurtta, Espoo, FI;
Mikko Puuskari, Helsinki, FI;
Shkumbin Hamiti, Espoo, FI;
Teemu Jäppinen, Espoo, FI;
Marc Greis, Irving, TX (US);
Serge Haumont, Helsinki, FI;
Tuija Hurtta, Espoo, FI;
Mikko Puuskari, Helsinki, FI;
Shkumbin Hamiti, Espoo, FI;
Teemu Jäppinen, Espoo, FI;
Marc Greis, Irving, TX (US);
Serge Haumont, Helsinki, FI;
Nokia Siemens Networks Oy, Espoo, FI;
Abstract
The invention relates to a method and a communication system comprising at least one first network element connectable to a second network element. At least one of the first and second network elements use one of two or more selectable modes for communicating with another network element. One or both of the network elements, or a third network element, which is connectable with the first and second network elements, performs a mode selection procedure for selecting the same mode for bidirectional communication between the network elements. The modes preferably are different codec types, channel-coding schemes, or radio interface protocol types. The first and/or second network elements may be portable terminal equipments and the third network element preferably is a support node or a means providing a support function such as a CSCF. The mode selection ensures use of one and the same mode, such as a codec, in uplink and downlink directions enabling IP telephony in UMTS using SIP protocol.