Importance

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Abstract

Methods, computer code products and systems for authenticating user equipment for access to a trusted network can include receiving a user identity uniquely identifying the user equipment. A proxying entity in the trusted network can generate a network-trusted header including the user identity and forward it to a serving entity in the network. The serving entity performs verification on the received carrier header and can compare the user identity with a list of approved user IDs and if a match is found, the user equipment can be authenticated for access to the network. IBCF that performs optional hiding for the proxying entity toward the Home IMS network can extract the proxying entity-generated parameter out of the encrypted token making it readable to the serving entity if it is encrypted in the carrier header. The proxying entity can also provide verification of the utilized header when processing the registration request from the user equipment. Alternatively the serving entity can be provisioned with data related to NBA support in various proxying entities or domains where proxying entities arc located so that the serving entity can decide to proceed with NBA procedure or not for registration received via certain proxying entities or visited networks.

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First Claim