Call-back method in a communication system

H - Electricity – 04 – M

Patent

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H04M 3/48 (2006.01)

Patent

CA 2572851

The invention relates to a callback method in a communications system for the purpose of establishing a communications connection between a calling terminal (A) and a terminal (B, C), which is being called and which can be reached via a call number, by switching effected by at least one exchange (E). In order to initiate the communications connection, the call number is merely input into the calling terminal (A) whereby initiating a transmission of a data set to the exchange. The data set causes the exchange (E) to carry out a callback to the calling terminal (A) and a call to the terminal (B, C) that is to be called, and to establish the communications connection between both terminals (A, B or C). The inventive method is characterized in that the call number, after its input into the calling terminal (A), is automatically supplemented with the data set, and the data message obtained as a result is transmitted to the exchange (E).

L'invention concerne un procédé de rappel automatique dans un système de communication, pour établir une liaison de communication entre un terminal appelant (A) et un terminal à appeler (B, C), pouvant être atteint par l'intermédiaire d'un numéro d'appel, par commutation d'au moins un central téléphonique (E). Pour initier la liaison de communication, seul le numéro d'appel est introduit dans le terminal appelant (A), ce qui déclenche une transmission d'un jeu de données au central téléphonique. Ledit jeu de données permet au central téléphonique (E) d'effectuer un rappel automatique au terminal appelant (A) et un appel au terminal à appeler (B, C) et d'établir la liaison de communication entre les deux terminaux (A, B et C). Ledit procédé se caractérise en ce que le numéro d'appel est complété par le jeu de données de manière automatique, une fois introduit dans le terminal appelant (A) et une fois le message de données ainsi obtenu, transmis au central téléphonique (E).

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