Abstract: Authentication problems often occur when a user of a terminal visits a communications network while roaming. A method is therefore provided for authorizing an authenticated user of a communications terminal. The terminal is configured to connect to a packet-switching network via an access gateway over a current network to which the terminal is connected. The method is implemented by a current authentication server over the current network and includes: receipt of a user authorization request from the access gateway, including an identifier of the user; transmission of a user authorization response to the access gateway, including parameters for authorizing the user, and a unique identifier of an authentication server that authenticated the user.

Abstract: A method for connecting a terminal of a user to an anchoring gateway connected to a packet-switching network. The method is implemented by an access gateway to which the terminal is connected and includes: transmission of a user authorization request, including an identifier of the user, to a current authentication server; receipt of a user authorization response from the current authentication server, including a unique identifier of an authentication server that authenticated the user; transmission of a connection request to the anchoring gateway, intended to connect the terminal to the packet-switching network, including the unique identifier of the authentication server that had authenticated the user.

Abstract: Authentication problems often occur when a user of a terminal visits a communications network while roaming. A method is therefore provided for authorizing an authenticated user of a communications terminal. The terminal is configured to connect to a packet-switching network via an access gateway over a current network to which the terminal is connected. The method is implemented by a current authentication server over the current network and includes: receipt of a user authorization request from the access gateway, including an identifier of the user; transmission of a user authorization response to the access gateway, including parameters for authorizing the user, and a unique identifier of an authentication server that authenticated the user.