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:
Jan. 02, 1996
Filed:
Dec. 27, 1994
Richard W Griffiths, Red Bank, NJ (US);
Rose A Krilcich, Naperville, IL (US);
William G Kuchenbecker, Naperville, IL (US);
Bryan M Richardson, Westminster, CO (US);
AT&T Corp., Murray Hill, NJ (US);
Abstract
Redirection of calls from a busy primary destination to a secondary destination of a switched egress alternate destination redirection (ADR) customer is performed in the absence of sufficient terminating line status information in the form of either a busy or free indication being provided to the originating switch which provides the ADR service feature capability. The originating switch infers that the primary destination is busy and redirects the call to the secondary destination accordingly if the time that passes since the inception of the call is greater than a predetermined interval in which the call has not been answered.