Handling emergency service calls originating from internet telephony
First Claim
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1. A method for interfacing internet protocol (IP)-enabled emergency calls to a public 9-1-1 system comprising:
- receiving an emergency call originating from internet protocol (IP) telephony to a data network via a routing device having a routing device identifier;
determining whether the emergency call originated from a first location associated with the IP telephony;
determining, when the emergency call originated from the first location, whether at least one of an automatic number identification (ANI) or automatic location information (ALI) is resolvable for the IP telephony;
matching the routing device identifier, when the emergency call did not originate from the first location or neither the ANI nor the ALI is resolvable, to stored profile information associated with the routing device; and
transmitting the emergency call to a public service answering point (PSAP) based on the matched profile information or the at least one of the ANI or the ALI.
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Abstract
A method and system for interfacing internet protocol-enabled emergency calls to a public 9-1-1 system are described. The method can include routing an emergency call originating from internet protocol telephony to a data network via a routing device which may include an identifier. The method can include transferring the routed emergency call to a predetermined public service answering point based on the identifier.
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Citations
21 Claims
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1. A method for interfacing internet protocol (IP)-enabled emergency calls to a public 9-1-1 system comprising:
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receiving an emergency call originating from internet protocol (IP) telephony to a data network via a routing device having a routing device identifier; determining whether the emergency call originated from a first location associated with the IP telephony; determining, when the emergency call originated from the first location, whether at least one of an automatic number identification (ANI) or automatic location information (ALI) is resolvable for the IP telephony; matching the routing device identifier, when the emergency call did not originate from the first location or neither the ANI nor the ALI is resolvable, to stored profile information associated with the routing device; and transmitting the emergency call to a public service answering point (PSAP) based on the matched profile information or the at least one of the ANI or the ALI. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A network device for interfacing internet protocol (IP)-enabled emergency calls to a public 9-1-1 system comprising:
a routing device to; store location information associated with the network device; receive data including an emergency call from an internet protocol (IP) telephony user device via a first data network; attach the location information and profile information to the emergency call, where the profile information identifies, based on the received data, the emergency call as originating from a fixed location associated with the IP telephony user device or a location remote from the fixed location; and route the emergency call along with the profile information and the location information to a second data network. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A method for interfacing internet protocol (IP)-enabled emergency calls to a public 9-1-1 system comprising:
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receiving a 9-1-1 call on a data network placed from an internet protocol (IP) user device configured to be selectively used from a fixed location connection and from a plurality of remote location connections, wherein the 9-1-1 call includes profile information; determining, from the profile information, whether the 9-1-1 call originated from the fixed location or one of the remote location connections; determining, when the 9-1-1 call originated from the fixed location, whether at least one of an automatic number identification (ANI) or automatic location information (ANI) is resolvable from the profile information; identifying, when the emergency cal originated from the one remote location connection or neither the ANI nor the ALI is resolvable, an end-user routing device used to route the 9-1-1 call; designating an assigned public safety answering point (PSAP) based on the identified end-user routing device or the at least one of the ANI or the ALI; redirecting the 9-1-1 call to a public switched telephone network (PSTN); and forwarding the redirected 9-1-1 call to the assigned PSAP. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A system for interfacing internet protocol (IP)-enabled emergency calls to a public 9-1-1 system, comprising:
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means for registering in a database, a fixed geographic location of a customer premise routing device; means for designating a public safety answering point (PSAP) in a 9-1-1 system for the customer premise routing device; means for receiving an emergency call routed through the customer premise routing device; means for determining whether the emergency call originated from a first location; means for determining, when the emergency call originated from the first location, whether at least one of am automatic number identification (ANI) or automatic location information (ANI) is resolvable for the emergency call; means for determining, when the emergency call did not originate from the first location or neither the ANI nor the ALI is resolvable, that the customer premise routing device routes the received emergency call and retrieving the fixed geographic location from the database; and means for transmitting the received emergency call to the designated PSAP based on the fixed geographic location or the at least one of the ANI or the ALI.
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Specification