Patent ID: 9032483
Filing Date: 2015-05-12
Classification: H04L

Abstract:
1. A system comprising: a Serving-Call Session Control Function (S-CSCF) of an IP Multimedia Subsystem (IMS) network; the S-CSCF is configured to receive a first message from a device to register the device with the IMS network, wherein the first message includes a Public Identifier (PUID) for the device; the S-CSCF is configured to transmit a second message to a Home Subscriber Server (HSS) of the IMS network with the PUID for the device, to receive a third message from the HSS with passwords that are mapped to the PUID, and to transmit a fourth message to the device to challenge the device for an authentication check; the S-CSCF is configured to receive a fifth message from the device with an authentication response to authenticate the device; the S-CSCF is configured to transmit a sixth message to the device to challenge a user of the device for a password, to receive a seventh message from the device that includes the password input by the user, to compare the password input by the user with the passwords mapped to the PUID, to authenticate the user as an authorized user of the device only when the password input by the user matches the passwords mapped to the PUID, and to register both the user and the device when the user is authenticated.