Centralized service circuit deployment

Details Centralized service circuit deployment Centralized service circuit deployment

H - Electricity

04

Q

H04Q 3/00 (2006.01)

Patent

CA 2109395

This invention relates to the minimizing of call set-up time for calls requiring the use of service circuits provided from a separate switching system, such as a service circuit node (SCN). Groups of semi-permanent circuits through a public switched telephone network (PSTN) are allocated to each of the switching systemsserved by the SCN. Thus, whenever a switching system has a call that requires the use of a service circuit housed in the SCN, the connection is already established. Traffic is controlled by limiting the size of the semi-permanent circuit groups, but these groups can be made larger or smaller, up to some overall total for the SCN, as traffic to each switching system changes. Advantageously, this arrangement permits efficient use of a large group of service circuits at the SCN, while minimizing the total call set-up time.

L'invention porte sur la minimisation du temps d'établissement des appels dans le cas des appels qui nécessitent l'utilisation de circuits de service fournis par un système de communication distinct, tel qu'un noeud de circuit de service. Par l'intermédiaire d'un réseau téléphonique commuté public, des groupes de circuits semi-permanents sont affectés à chacun des systèmes de commutation desservis par le noeud de circuit de service. Ainsi, chaque fois qu'un système de commutation reçoit un appel nécessitant l'utilisation d'un circuit de service faisant partie du noeud de circuit de service, la connexion est déjà établie. On contrôle le trafic en limitant la taille des groupes de circuit semi-permanents, mais on peut faire varier la taille de ces groupes jusqu'à un certain total global pour le noeud de circuit de service à mesure que le trafic vers chacun des systèmes de commutation varie. Cette invention permet d'utiliser efficacement un groupe considérable de circuits de service au noeud de circuit de service tout en minimisant le temps total d'établissement des appels.

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