H - Electricity – 04 – Q
Patent
H - Electricity
04
Q
H04Q 3/00 (2006.01)
Patent
CA 2277219
The invention relates to a procedure for the processing of an unexpected disconnect request in an access node (AN) which is connected to a local exchange (LE) over a V5 interface. In the access node (AN), call setdown is effected by means of a disconnect message, which is sent from the local exchange (LE) and on the basis of which the call resources in the local exchange (LE) are released. According to the invention, the resources reserved in the access node (AN) for the call are preserved. Moreover, the local exchange (LE) is informed that the subscriber is busy, thus preventing the occurrence of an undefined condition between the local exchange (LE) and the access node (AN).
L'invention concerne une procédure de traitement d'une demande de coupure inattendue dans un noeud d'accès (AN) qui est connecté à un central urbain (LE) par l'intermédiaire d'une interface V5. Dans le noeud d'accès (AN), l'interruption de l'appel s'effectue au moyen d'un message de coupure qui est envoyé par le central urbain (LE) et sur la base duquel les ressources d'appel dans le central urbain (LE) sont libérées. Selon la procédure de l'invention, les ressources réservées dans le noeud d'accès (AN) pour l'appel sont conservées. De plus, le central urbain (LE) est informé du fait que l'abonné est occupé, ce qui empêche ainsi la survenance d'un état indéfini entre le central urbain (LE) et le noeud d'accès (AN).
Heikkila Vesa
Juntunen Timo
Liinamaa Olli
Nokia Telecommunications Oy
Norton Rose Canada S.e.n.c.r.l.,s.r.l./llp
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