Caller treatment in a sip network

H - Electricity – 04 – M

Patent

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Details

H04M 11/00 (2006.01) H04L 12/56 (2006.01) H04M 3/00 (2006.01) H04M 3/42 (2006.01)

Patent

CA 2441541

In a SIP network (10), SIP servers (20, 30) are provisioned with information used to authenticate subscribers and entities that will be placing calls. This information can be used during call establishment to allow or deny calls, as well as to determine the appropriate party to bill if the call involves a charge, such as a long distance charge. In addition to allowing calls between authenticated and trusted entities, there is a need for the SIP server to allow certain kinds of calls that involve non-trusted users or entities. If non-trusted entities where not recognized, trusted users and entities within the SIP network would not be able to receive calls from users or entities not know to the SIP server that is providing them services.

Dans un réseau SIP (10), les serveurs SIP (20, 30) sont approvisionnés en informations utilisées pour authentifier les abonnés et les entités qui passeront les appels. Lesdites informations peuvent être utilisées pendant l'établissement de l'appel, pour autoriser ou refuser les appels, ainsi que pour déterminer la partie appropriée à facturer si l'appel implique une taxe, telle qu'une taxe interurbaine. Outre le fait qu'il autorise des appels entre des entités autorisées et éprouvées, le serveur SIP doit permettre certains types d'appels impliquant des utilisateurs ou des entités non éprouvés. Si des entités non éprouvées n'étaient pas reconnues, les utilisateurs et entités éprouvés dans le réseau SIP ne seraient pas en mesure de recevoir des appels d'utilisateurs ou d'entités non connues par le serveur SIP leurs fournissant des services.

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