Switched telecommunication network, method of establishing a...

Details Switched telecommunication network, method of establishing a... Switched telecommunication network, method of establishing a...

H - Electricity

04

Q

H04Q 3/64 (2006.01) H04Q 3/66 (2006.01) H04Q 11/00 (2006.01)

Patent

CA 2229889

The invention relates to a switched telecommunication network with several exchanges (VStA, VStB, VStC, VStD VStE) which are directly or indirectly interconnected such that at least between individual pairs of exchanges (VStA/VStE), more than two paths (VStA-VStB-VStE, VStA-VStC-VStE, VStA-VStD-VStE) are possible, and with at least one routing facility (ARU) which decides on the selection of the respective path to be used for each connection to be established and which does not select a path if it was blocked on the last attempt, the routing facility (ARU) being designed not to select a path if it is identical in sections (Mux-Mux) with a path which was blocked on the previous attempt, and to a method of establishing a switched connection in a switched telecommunication network, to an exchange, and to a routing facility therefor.

La présente invention porte sur un réseau de télécommunication commuté contenant plusieurs centraux (VStA, VStB, VStC, VStD, VStE) qui sont interconnectés directement ou indirectement de telle façon que plus de deux trajets (VStA-VStB-VStE, VStA-VStC-VStE, VStA-VStD-VStE) soient possibles au moins entre les paires de centraux individuelles (VStA/VStE), ainsi qu'une installation d'acheminement au moins qui choisit le trajet à utiliser pour chaque connexion à établir, mais ne choisit aucun trajet s'il y a eu blocage de la dernière tentative, cette installation d'acheminement étant conçue de façon à ne pas choisir un trajet si celui-ci est identique dans certaines sections (Mux-Mux) à un trajet qui a été bloqué à la tentative précédente. L'invention porte également sur une méthode pour établir, dans les réseaux de télécommunication commutés, des connexions commutées avec des centraux, et sur l'installation d'acheminement connexe.

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