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Unauthenticated Network Access Public user credentials. In this situation, a client uses the defined network selection method to query candidate networks to determine which one (or several) supports VoIP, end-to-end QoS and emergency services. Once this has been determined, the client associates to the SSID corresponding to the chosen network using public user credentials. It may be necessary to define a default EAP method along with the credentials in order enable this operation. Use an SSID configured for Open Authentication, that is only suitable for obtaining emergency service (i.e., and not suited for obtaining other hotspot services such as internet access). Network elements necessary to complete an emergency call are reachable via this SSID. How to reach these network elements (e.g., a Call Manager) and which protocol to use (e.g., SIP) are outside the scope of IEEE 802.11. |