Enhanced E911 Network Access for Call Centers
4 Assignments
0 Petitions
Accused Products
Abstract
An emergency call (e.g., a 911 call, an alarm company call) forwarded by a telematics call center is routed over the switched PSTN to a Voice Over Internet Protocol (VoIP) call server, where the switched call is converted to a session initiating protocol (SIP) packetized IP call for presentation to an emergency services gateway, which reconverts the call to TDM and connects to a selective router via dedicated circuits, gaining full access to the Enhanced 911 network. This provides a PSAP receiving a call from a telematics call center or other call center with all features available in an Enhanced 911 network, e.g., callback number of the 911 caller, and location of the 911 caller. Location of the caller is provided using a VoIP positioning center (VPC).
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Citations
28 Claims
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1-12. -12. (canceled)
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13. A method of providing a telematics call center with access to an Enhanced 911 network supporting a public safety answering point (PSAP), comprising:
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receiving a switched phone call from a telematics call center, via a switched telephone network, at a VoIP call server; converting, at said VoIP call server, said switched telephone call into an Internet Protocol (IP) based packetized phone call; querying a VoIP positioning center for call routing information to route said SIP packetized phone call to a particular PSAP, said VoIP positioning center query comprising a telematics call center telephone number; receiving said call routing information from said VoIP positioning center; and establishing, via said VoIP call server, a conference call with said IP based packetized phone call, said telematics call center, and said particular PSAP based on said call routing information. - View Dependent Claims (14, 15, 16, 17, 18, 25, 26)
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19. System for providing a telematics call center with access to an Enhanced 911 network supporting a public safety answering point (PSAP), comprising:
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a receiver, at a VoIP call server, to receive a switched phone call, via a switched telephone network, from said telematics call center; a converter, at said VoIP call server, to convert said switched telephone call into an Internet Protocol (IP) based packetized phone call; and a database querying module to query a VoIP positioning center for call routing information to route said SIP packetized phone call to a particular PSAP, said query comprising a telematics call center telephone number; and a routing information receiver to receive said call routing information from said VoIP positioning center; wherein a conference call is established with said IP based packetized phone call, said telematics call center, and said particular PSAP based on said call routing information. - View Dependent Claims (20, 21, 22, 23, 24, 27, 28)
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Specification