A user (terminal) is allowed to make an emergency voice-over-Internet Protocol (VoIP) phone call through an access network, such as a wireless local area network (WLAN) using Extensible Authentication Protocol (EAP). The emergency call can be made with or without authentication credentials and is identified...http://www.google.ca/patents/US8194826?utm_source=gb-gplus-sharePatent US8194826 - Handling emergency calls using EAP
