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. 28, 1998
Filed:
Aug. 12, 1996
Applicant:
Inventors:
Walton P Haines, Corralitos, CA (US);
Steven Waller, Santa Cruz, CA (US);
Assignee:
Ellipsys Technologies, Inc., Soquel, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
379372 ; 379377 ; 379386 ; 379376 ; 379373 ;
Abstract
A device capable of analyzing call progress event information from sensors connected to switched network circuits for the purpose of identifying the beginning and end of a telephone call. The invention also collects and analyzes all events occurring between the origination and termination of the call, providing a detailed description of both telephone user and network element actions. Abnormal events are identified during this analysis so that call quality can be determined. The invention can use information supplied by sensors that are intrusive or non intrusive to the switched network circuit.