Abstract: A method of initiating the provisioning of subscriber data in at least a Home Subscriber Server of an IP Multimedia Subsystem network. The method comprises receiving an authentication request or Session Initiation Protocol message in respect of a given subscriber who is making use of a user terminal to access the IP Multimedia Subsystem network. If it is determined that subscriber data is not currently provisioned for the subscriber in a Home Subscriber Server function or receiving such a determination, the following steps are performed: 1) causing a first notification to be sent to the user terminal indicating that the registration attempt is rejected, and 2) sending a second notification to a subscriber provisioning system informing the provisioning system of the registration attempt.

Abstract: Network nodes can add information to a central database (220, 300) that identifies their connections to other network nodes. The central database (220, 300) can thereby serve as a repository of information indicating connections between network nodes. When a first network node (Node 0) needs to establish a session to a second network node (Node 1), it can interrogate the central database (220, 300) to learn what existing connections, if any, can be used for the session. When existing connections provide more than one available pathway between the first and second network nodes (Node 0, Node 1), the first network node (Node 0) may select among the existing connections in response to quality of service values that are provided by the central database (220, 300) for those connections.

Abstract: Network nodes can add information to a central database (220, 300) that identifies their connections to other network nodes. The central database (220, 300) can thereby serve as a repository of information indicating connections between network nodes. When a first network node (Node 0) needs to establish a session to a second network node (Node 1), it can interrogate the central database (220, 300) to learn what existing connections, if any, can be used for the session. When existing connections provide more than one available pathway between the first and second network nodes (Node 0, Node 1), the first network node (Node 0) may select among the existing connections in response to quality of service values that are provided by the central database (220, 300) for those connections.

Abstract: Network nodes can add information to a central database that identifies their connections to other network nodes. The central database can thereby serve as a repository of information indicating connections between network nodes. When a first network node needs to establish a session to a second network node, it can interrogate the central database to learn what existing connections, if any, can be used for the session. When existing connections provide more than one available pathway between the first and second network nodes, the first network node may select among the existing connections in response to quality of service values that are provided by the central database for those connections.

Abstract: Network nodes can add information to a central database that identifies their connections to other network nodes. The central database can thereby serve as a repository of information indicating connections between network nodes. When a first network node needs to establish a session to a second network node, it can interrogate the central database to learn what existing connections, if any, can be used for the session. When existing connections provide more than one available pathway between the first and second network nodes, the first network node may select among the existing connections in response to quality of service values that are provided by the central database for those connections.

Abstract: A method of initiating the provisioning of subscriber data in at least a Home Subscriber Server of an IP Multimedia Subsystem network. The method comprises receiving an authentication request or Session Initiation Protocol message in respect of a given subscriber who is making use of a user terminal to access the IP Multimedia Subsystem network. If it is determined that subscriber data is not currently provisioned for the subscriber in a Home Subscriber Server function or receiving such a determination, the following steps are performed: 1) causing a first notification to be sent to the user terminal indicating that the registration attempt is rejected, and 2) sending a second notification to a subscriber provisioning system informing the provisioning system of the registration attempt.