Patent ID: 9479600
Filing Date: 2016-10-25
CPC Classification: H04L,H04W

Claim Text:
1. A method of provisioning subscriber data in an IP Multimedia Subsystem network, the method comprising, at a Home Subscriber Server of the IP Multimedia Subsystem network: receiving an authentication request from a Serving Call Session Control Function of the IP Multimedia Subsystem network 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; determining that subscriber data is not currently provisioned for the subscriber in a Home Subscriber Server; and responsive to the determining, 1) sending a first notification to said Serving Call Session Control Function indicating that authentication has been successfully completed and that the subscriber data for the subscriber is not yet provisioned in the Home Subscriber Server 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, the method further comprising, at the Home Subscriber Server, receiving subscriber data from said subscriber provisioning system sent in response to said second notification, and storing said subscriber data, wherein the Session Initiation Protocol message comprises one or more IP Multimedia Subsystem capabilities of the user terminal, and wherein the second notification to the subscriber provisioning system comprises the IP Multimedia Subsystem capabilities of the user terminal.