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:
Apr. 03, 2012
Filed:
Apr. 10, 2007
Robert Allen Sherry, Aurora, IL (US);
Lawrence W. Ciesla, Yorkville, IL (US);
Patti L. Mccalmont, Danville, IA (US);
Robert Allen Sherry, Aurora, IL (US);
Lawrence W. Ciesla, Yorkville, IL (US);
Patti L. McCalmont, Danville, IA (US);
West Corporation, Omaha, NE (US);
Abstract
An Emergency Services Application Server (ES-AS) that obtains routing instructions for both VoIP-originated and non-VoIP-originated calls to emergency services numbers (e.g., 9-1-1). If the emergency request is a VoIP-originated call and includes a location object, the ES-AS queries its database using the location object to obtain routing information. If a location object is not provided, the ES-AS queries a location information server to obtain a location object. The ES-AS then uses the location object to query its database. If the call is originated by legacy user equipment, the ES-AS accesses a legacy automatic location information system to obtain location information and the associated PSAP. The ES-AS then queries its database with the returned information to refine routing information needed to route the call to the identified PSAP. The ES-AS includes a web services interface that allows a PSAP or authorized agency to change routing instructions dynamically, which overrides any static data in the ES-AS's routing database.