Public service answering point (PSAP) proxy
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
May 31, 2007
app pub date -
Jun 22, 2006
filing date -
Oct 20, 2005
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A 'PSAP Proxy', including VoIP functions of call/content delivery to a PSAP, is IP addressable by multiple different VPCs, from multiple VoIP service providers. If the PSAP address is known and the Location Object (LO) is known when a VoIP caller dials 911, the VoIP service provider's softswitch sends the call to the PSAP Proxy for delivery over the determined call access type. If the PSAP address or LO is not known when a VoIP caller dials 911, the softswitch sends the VoIP call to a VPC for addition of the LO. Then the VPC selects the correct PSAP Proxy and passes the call, with LO, over an IP connection to the correct PSAP Proxy. The PSAP Proxy determines capability of the PSAP, and delivers the call. Thus, PSAPs appear IP capable to VoIP service providers, and a SIP URI is provided for PSAPs.
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