Handling emergency calls using EAP
First Claim
1. A method for placing an emergency voice-over-Internet Protocol (VoIP) call from a terminal in communication with an access network that is disparate from a home network of the terminal, the method comprising:
- receiving, at the access network, an identity response from the terminal that includes a Network Access Identifier (NAI) comprising information indicative of emergency calling;
determining that the terminal is at least one of initiating or has initiated an emergency call based on the NAI; and
granting access to the terminal, in response to the determining, wherein the access is limited to enabling communication with an emergency call center via at least one of the access network or one or more intermediary networks, without authenticating the terminal.
3 Assignments
0 Petitions
Accused Products
Abstract
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 by the user'"'"'s terminal transmitting a Network Access Identifier (NAI) having a user part and/or realm part that indicates the emergency nature of the call, such as e911@e911.com. In response to such an NAI, the caller can be immediately granted limited authentication for the purpose of connecting to an emergency call center. Alternatively, the user (terminal) can be authenticated through networks supporting emergency calls, such as the user'"'"'s home network, if the terminal indicates to the access network authentication server a preference or requirement for using such networks. The call can be routed to the emergency call center either directly or via one or more intermediary networks, such as networks that support emergency VoIP phone calls.
35 Citations
20 Claims
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1. A method for placing an emergency voice-over-Internet Protocol (VoIP) call from a terminal in communication with an access network that is disparate from a home network of the terminal, the method comprising:
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receiving, at the access network, an identity response from the terminal that includes a Network Access Identifier (NAI) comprising information indicative of emergency calling; determining that the terminal is at least one of initiating or has initiated an emergency call based on the NAI; and granting access to the terminal, in response to the determining, wherein the access is limited to enabling communication with an emergency call center via at least one of the access network or one or more intermediary networks, without authenticating the terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for controlling placement of an emergency voice-over-Internet Protocol (VoIP) call from a terminal in communication with an access network, the system comprising:
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an access point, within the access network, that receives information from the terminal including a Network Access Identifier (NAI) that is indicative of emergency calling associated with a VoIP call, the access network is different from a home network to which the terminal subscribes; and an authentication, authorization and accounting (AAA) server, local to the access network, that allows the terminal access to only one or more emergency call centers via at least one of the access network or one or more intermediary networks regardless of authentication the terminal, if the NAI indicates that the terminal is at least one of initiating or has initiated the emergency VoIP call. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A system for controlling placement of an emergency voice-over-Internet Protocol (VoIP) call from a terminal roaming within access network that is not the terminal'"'"'s home network, the system comprising:
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means for receiving, within the access network, information from the terminal indicating that a VoIP call initiated by the terminal is an emergency VoIP call, the information is included within a Network Access Identifier (NAI); means for allowing the terminal to access the access network without performing authentication of the terminal with the home network, wherein the access is limited to utilization of the access network for communication with an emergency call center during the emergency VoIP call via zero or more intermediary networks; and means for routing location information, indicative of a geographical location of the means for receiving, to the emergency call center.
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Specification