Abstract: The present invention relates to method for integrating a Wireless Local Area Network (WLAN) and a Wireless Wide Area Network (WWAN) and to a Wireless Local Area Network Serving Node (WSN) therefore. For doing so, the WSN receives Remote Authentication Dial-In User Service (RADIUS) Request message from an Access Point (AP), the RADIUS Request message including terminal's credentials. The WSN proxies the RADIUS Request message at a RADIUS proxy capability. The WSN authenticates the terminal using the terminal's credentials. The WSN manages charging operation for the terminal.

Abstract: A system and method for conveying data in an inter-exchange message, said data identifying a selected one of a plurality of mobile station identifiers to be used in connection with a particular mobile station. The mobile station selects said mobile station identifier prior to registering with a first mobile switching center. Subsequently, the mobile station moves into an area served by a second mobile switching center. An inter-exchange message containing information about the mobile station is then sent from the first mobile switching center to the second mobile switching center. The information includes the plurality of mobile station identifiers and an indication of which one of the identifiers has been selected for use by the mobile station.