Shared dns domain handling

H - Electricity – 04 – L

Patent

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H04L 29/12 (2006.01) H04L 29/06 (2006.01)

Patent

CA 2702914

Instead of rejecting an incoming request at a node (201) of a SIP domain (200), e.g. an IMS domain, when a user database query has failed (401), it is determined (402) whether the DNS domain name of the request is registered as a shared domain or not. If it is found that the DNS domain name is registered as a shared domain, the DNS domain name is resolved into a globally routable URI, and the request is routed (405) towards the terminating entity. If, however, the DNS domain name is not shared, the request is rejected. Such a mechanism enables operators to allow for a DNS domain name to be utilized by more than one SIP domain.

Au lieu de rejeter une requête arrivant à un nud (201) d'un domaine SIP (200), par exemple un domaine IMS, lorsqu'une interrogation de base de données d'utilisateur a échoué (401), ce procédé consiste à déterminer (402) si le nom de domaine DNS de la requête est enregistré en tant que domaine partagé ou non. S'il est déterminé que le nom de domaine DNS est enregistré en tant que domaine partagé, le nom de domaine DNS est résolu en un identifiant URI globalement routable, et la requête est routée (405) vers l'entité destinataire. Si toutefois le nom de domaine DNS n'est pas partagé, la requête est rejetée. Un tel mécanisme permet à des opérateurs d'autoriser qu'un nom de domaine DNS soit utilisé par plus d'un domaine SIP.

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