Method for transmitting voice information over an internet...

Details Method for transmitting voice information over an internet... Method for transmitting voice information over an internet...

H - Electricity

04

L

H04L 29/06 (2006.01) H04L 12/46 (2006.01) H04L 12/56 (2006.01) H04M 7/00 (2006.01) H04L 29/08 (2006.01)

Patent

CA 2411677

The invention relates to a method for transmitting voice information via an internet protocol. Said information is exchanged in packets between at least two nodes via a link layer protocol (PPP) by compressing the headers of the packets. A connection-oriented transmission protocol (MPLS) allows to establish a unidirectional tunnel between the at least two nodes. The inventive method is further characterized in that one forward tunnel and one reverse tunnel is established between the two nodes, that both tunnels are combined to give a bi-directional link, thereby facilitating a bi-directional communication, and that the packets of the link layer protocol (PPP) are guided via one respective tunnel.

L'invention concerne un procédé pour transmettre des informations vocales par l'intermédiaire d'un protocole Internet, lesquelles sont échangées entre au moins deux noeuds, par l'intermédiaire d'un protocole de couche de liaison (PPP) par paquets, les en-têtes de ces paquets étant comprimés, et avec un protocole de transmission orienté liaison (MPLS), à l'aide duquel un tunnel peut être établi de façon unidirectionnelle entre les noeuds mentionnés, qui sont au moins deux. Ce procédé se caractérise en ce que, entre les deux noeuds, dans le sens "vers l'avant" et dans le sens "vers l'arrière", est établi respectivement un tunnel, qu'ensuite les deux tunnels sont combinés pour former une liaison bidirectionnelle, ce qui permet une communication bidirectionnelle, et que les paquets du protocole de couche de liaison (PPP) passent respectivement par un tunnel.

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