The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 30, 2019
Filed:
Jun. 06, 2017
Bandwidth.com, Inc., Raleigh, NC (US);
Thomas Ginter, Raleigh, NC (US);
BANDWITH.COM, INC., Raleigh, NC (US);
Abstract
Disclosed are techniques for enabling an emergency call routing system. The system comprises a Voice-over Internet Protocol (VoIP) position center (VPC) server and a location information server (LIS). The VPC server may be configured to receive a session initiation protocol (SIP) INVITE for an emergency call intended for a destination public safety answering point (PSAP) from a telecommunication service provider (TSP) SIP call server. The VPC may also respond to the source of the SIP INVITE message with a SIP redirect response that includes routing data compatible with and capable of enabling the TSP SIP call server to route the emergency call to the destination PSAP. The LIS server may be configured to receive and store telephone number provisioning information from a TSP, the information including registered address data for the telephone number. The LIS may also receive and store PSAP capability data, the PSAP capability data indicative of the PSAP being i2 capable or i3 capable. For i2 capable PSAPs, the LIS may receive and respond to address requests for the telephone number that initiated the emergency call. For i3 capable PSAPs, the LIS may provide the VPC a PIDF-Lo formatted location object within the SIP redirect response.