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:
Sep. 28, 1993
Filed:
Jan. 03, 1991
Vincent D Vanacore, Boulder, CO (US);
AT&T Bell Laboratories, Murray Hill, NJ (US);
Abstract
A call-load control arrangement for a first call-answering center, such as an E911 service PSAP, causes calls destined for the first center and not yet routed thereto to be rerouted by a central office from the central office directly to a second, alternate, call-answering center while the first center is in call overload. A function monitors current parameters of call-answering performance of the first center and periodically compares them against predetermined criteria of acceptable call-answering performance to determine whether call overload exists. In the E911 service PSAP, the function automatically closes and opens a switch to activate and deactivate the 'night-service' or 'trunk make-busy' link to cause the central office respectively to reroute calls away from, or to route calls to, the PSAP.