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US 7,734,019 B1Granted
Systems and methods for third party emergency call termination
AssigneeLevel 3 Communications, LLC
InventorRichard D. Terpstra
Life of this patent
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Abstract
Various systems and methods for servicing emergency calls are disclosed. One such method includes providing a location database that includes physical location information about a communication device. This location information can be accessed either directly or indirectly by an emergency service answering system, while concealing the information from a network responsible for terminating the call.
Claims24
A method for servicing an emergency call, the method comprising:
- providing a location database, wherein the location database maintains a physical location of a communication device;
- in response to detecting a change occurring in one or more of an Internet Protocol (IP) address of the communication device or a load balancer accessed by the communication device, updating the location database with an alternate physical location;
- receiving an emergency call, wherein the emergency call originates from the communication device, and wherein the communication device is accessible via a call back number;
- forming a call request in relation to the emergency call, wherein the call request includes an indication of an emergency service answering system and a key;
- providing the call request to a network, wherein the network is capable of routing the emergency call to the emergency service answering system indicated by the call request;
- receiving a request for the call back number and the physical location of the communication device;
- and
- in response to the request for the call back number and the physical location of the communication device, providing the call back number and the alternate physical location of the communication device.
5 more elements
A system for servicing an emergency call, the system comprising:
- a location database;
- and
- a computer readable medium, wherein the computer readable medium includes instructions executable by a microprocessor to:
- receive an emergency call, wherein the emergency call originates from a communication device, and wherein the communication device is at a physical location;
- form a call request in relation to the emergency call, wherein the call request includes an indication of an emergency service answering system and a key;
- provide the call request to a network, wherein the network is capable of routing the emergency call to an emergency service answering system indicated by the call request;
- receive a request for the physical location of the communication device;
- access the location database, wherein the location database includes the physical location of the communication device;
- in response to the request for the physical location of the communication device, provide the physical location of the communication device;
- and
- update the location database when detection of one or more of a change in Internet Protocol (IP) address of the communication device or a change in load balancer accessed by the communication device indicates a change in physical location.
8 more elements
Dependencies are inferred from the claim text.