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:
May. 10, 1994
Filed:
Jun. 05, 1992
Joseph M Brozovich, Woodridge, IL (US);
Nicholas M DeVito, Naperville, IL (US);
Douglas C Kroupa, Lisle, IL (US);
Paul E Renn, Downers Grove, IL (US);
Paul M Simek, Lisle, IL (US);
David A Snyder, Naperville, IL (US);
James L Turner, Lemont, IL (US);
AT&T Bell Laboratories, Murray Hill, NJ (US);
Abstract
A line-based 911 system and method that completes an emergency call from a telephone to a PSAP comprising a multiplicity of operator stations connected by individual lines to a telephone switching system. An emergency call is routed to the termination ports of the switching system associated with a PSAP. Each of the termination ports is connected to one of the multiplicity of operator stations via its associated line, thereby establishing a path from the telephone to the operator station, the CPN of the calling telephone is delivered to the selected operator station and the operator station obtains location information of the telephone in accordance with the CPN, which is then displayed.