H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 12/66 (2006.01) H04L 29/06 (2006.01) H04L 29/08 (2006.01) H04M 7/00 (2006.01) H04Q 3/00 (2006.01)
Patent
CA 2379159
The present invention relates generally to the transmission of video, audio and/or data signals between nodes in multimedia networks, and in particular to the exchange of control information, in the form of capabilities information, between such nodes. The invention is suitable for use in the negotiation of the capabilities of nodes, notably in H.323 and SIP multimedia networks. The present invention provides a method and system of inband capability negotiation or signalling including logically mapping multimedia capabilities information to inband messages in order to establish the format for the passing of the multimedia information from the first network to the second network. The inband messages may be TFO (Tandem Free Operation) messages.
La présente invention concerne en général la transmission de signaux vidéo, audio et/ou de données entre les noeuds de réseaux multimédia, et en particulier l'échange d'informations de commande, sous forme d'informations de capacité, entre ces noeuds. L'invention peut s'utiliser lors de négociations portant sur les capacités de noeuds, notamment dans des réseaux multimédia H.323 et SIP. La présente invention concerne un procédé et un système de négociation ou de signalisation de capacité intra-bande, y compris l'application logique d'informations de capacités multimédia à des messages intra-bande afin d'établir le format de passage des informations multimédia du premier réseau au deuxième réseau. Les messages intra-bande peuvent être des messages TFO (Opération Libre en Tandem).
Graf Leslie Gary
Groves Christian Norman
Hollis Mark Alan
Noguera-Rodriguez Juan
Terrill Stephen Christopher
Ericsson Canada Patent Group
Telefonaktiebolaget Lm Ericsson
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