Method for transmission of signal tones in heterogeneous...

H - Electricity – 04 – L

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H04L 29/06 (2006.01) H04M 7/00 (2006.01) H04Q 3/00 (2006.01)

Patent

CA 2464296

The invention relates to a method for the establishment of a connection, whereby a media gateway controller (11) on the B side, which is given the transmission method supported by the media gateway (3) on the A side, selects a transmission method, which is supported by both the media gateway (3) on the A side and the media gateway (4) on the B side and transmits the selection thereof to the media gateway controller (10) on the A side. It can thus be guaranteed that in a commonly supported transmission method that a connection occurs in which the DTMF signal tones can be transmitted.

La présente invention concerne un procédé d'établissement de connexion dans lequel un contrôleur de passerelles média (11) sélectionne, du côté B auquel les méthodes de transmission supportées du côté A par la passerelle média (3) ont été transmises, une méthode de transmission qui est supportée à la fois par la passerelle média (3) du côté A et par la passerelle média (4) du côté B, et transmet sa sélection au contrôleur de passerelles média (10) du côté A. Cela permet de garantir, pour une méthode de transmission supportée de façon commune, l'établissement d'une connexion dans laquelle des signaux audio double tonalité multi-fréquence peuvent être transmis.

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