A method and an apparatus for exchanging information between...

H - Electricity – 04 – M

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H04M 3/42 (2006.01) H04M 3/48 (2006.01) H04M 3/533 (2006.01)

Patent

CA 2299316

In a communication network (N), an information message transfer means (IMTM) handles the independent forwarding of information messages to subscriber stations (A, B). When an initial call set-up request initiated from a first subscriber station (A) fails, this is detected by a detection means (DET). The information message transfer means (IMTM) is then activated and the first subscriber station (A) records a desired information message in a memory (MEM). Then the first subscriber station (A) goes into a "hung-up" operation state and is free for carrying on with other call set-up requests. The recorded information message is then transferred to the second subscriber station (B) by the information message transfer means (IMTM) which sets up an independent call to the desired subscriber station (B). With the independent setting-up of a call, it can be made sure that the information message will eventually reach the second subscriber station (B) without assistance of the first subscriber station (A).

Dans un réseau de communication (N), un organe de transfert de messages d'information (IMTM) gère l'acheminement indépendant des messages d'information vers les postes d'abonnés (A, B). Lorsqu'une demande initiale d'établissement de communication initiée par un premier poste d'abonné (A) échoue, un organe de détection (DET) détecte cet échec. L'IMTM est alors activé et le premier poste d'abonné (A) enregistre un message d'information souhaité dans une mémoire (MEM). Le premier poste d'abonné (A) entre ensuite dans une phase d'attente et est libre de traiter d'autres demandes d'établissement de communications. Le message d'information enregistré est transféré au second poste d'abonné (B) au moyen de l'IMTM qui établit une communication indépendante vers le poste d'abonné désiré (B). Grâce à l'établissement indépendant d'une communication, on peut être sûr que le message d'information arrivera bel et bien jusqu'au second poste d'abonné (B) sans l'aide du premier (A).

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