Emergency call identification, location and routing method and system
First Claim
1. A method of routing emergency calls, the method comprising:
- receiving an emergency call;
determining the call back number of the device originating the call;
transferring the call in a packet switched format via a packet switched network to a routing switch;
at the routing switch, querying a database for a geographic location associated with the call back number of the originating device;
determining an emergency call center whose service area includes the geographic location associated with the call back number of the originating device; and
, transferring the call with geographic location and other information from the routing switch in the packet switched format via a packet switched network to the identified emergency call center.
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Accused Products
Abstract
A method and system of receiving and handling emergency telephone calls from any source. The method and system provide a procedure and devices for transferring calls from a communications service provider to a packet switched network. On the network, the method and system associate a geographic location with the telephone number or device originating the call and determine an emergency call center to which the call should be routed. The call is routed to the call center via the packet switched network. The call is converted to a circuit switched format compatible with existing call center equipment and is presented to that equipment. A call center attendant answers the call and is presented with voice, a call back number, and caller location information. Other information may be proved as well. The method and system may provide verification of the geographic location of origin of the call.
206 Citations
25 Claims
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1. A method of routing emergency calls, the method comprising:
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receiving an emergency call;
determining the call back number of the device originating the call;
transferring the call in a packet switched format via a packet switched network to a routing switch;
at the routing switch, querying a database for a geographic location associated with the call back number of the originating device;
determining an emergency call center whose service area includes the geographic location associated with the call back number of the originating device; and
,transferring the call with geographic location and other information from the routing switch in the packet switched format via a packet switched network to the identified emergency call center. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A system for routing emergency telephone calls, the system comprising:
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a conversion device located at a circuit switched telephone service provider configured to receive and transfer emergency telephone calls from the service provider to a packet switched network;
a call routing switch configured to receive emergency telephone calls from the service provider conversion device via the packet switched network, the call routing switch configured to determine a geographic location of origin of the emergency telephone call and determining an emergency call center with a service area including the location of origin of the call, the call routing switch also configured to transfer the call to the emergency call center via the packet switched network; and
a conversion switch located at the emergency call center configured to receive the call from the call routing switch via the packet switched network and transfer the call to an operator at the call center with the location of origin. - View Dependent Claims (23, 24, 25)
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Specification