SOLUTIONS FOR VOICE OVER INTERNET PROTOCOL (VoIP) 911 LOCATION SERVICES

Title:

SOLUTIONS FOR VOICE OVER INTERNET PROTOCOL (VoIP) 911 LOCATION SERVICES

Document Type and Number:

WIPO Patent Application WO2005104518

Kind Code:

A3

Abstract:

An E-9-1-1 voice-over-IP (VoIP) solution is provided wherein a 911 call from a mobile VoIP device is routed directly to the correct Public Safety Answer Point (PSAP) via dedicated trunks, together with correct location information and call-back number. VoIP gateways are implemented locally, at least one per LATA, and accept VoIP packetized data inbound, and convert it to standard wireline voice calls. Calls are routed to an IP address at the VoIP gateway, which then egresses the call to a voice port at a selective router. Mid-call updating of location of a moving VoIP terminal is provided to a PSAP. The location of the VoIP is validated using HTTP based protocol by pushing location information to a VoIP location server, and comparing it against a geographic location database to confirm that a contained street address is valid.

Inventors:

ZHU YINJUN (US)
DICKINSON RICHARD (US)
MARSHALL ROGER (US)
HELME STEVEN P (US)

Application Number:

PCT/US2004/042367

Publication Date:

May 11, 2006

Filing Date:

December 20, 2004

Export Citation:

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Assignee:

TELECOMM SERVICES INC (US)
ZHU YINJUN (US)
DICKINSON RICHARD (US)
MARSHALL ROGER (US)
HELME STEVEN P (US)

International Classes:

H04L12/28; H04L12/56; H04L12/66; H04L29/06; H04M3/42; H04M7/00; H04M11/04; H04W4/02; H04W4/20; H04W4/90; H04W4/029; (IPC1-7): H04M11/04; H04L12/66

Foreign References:

US6779049B2	2004-08-17
US6771742B2	2004-08-03
US6456852B2	2002-09-24
US20040132465A1	2004-07-08

Other References: