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. 06, 1998
Filed:
Nov. 30, 1994
Allen Eisdorfer, Woodbridge, NJ (US);
Jerry Eisdorfer, Somerset, NJ (US);
AT&T, Middletown, NJ (US);
Abstract
In a personal communication service (PCS) environment, where a call to a personal telephone number may be routed to a sequence of telephone numbers until the call is answered or abandoned, and where it is possible that the destination telephones indicated in the sequence may be disconnected telephones such that they are unreachable from any network, a method for avoiding wasteful attempts to route the call by a) determining if any telephone numbers of the sequence correspond to disconnected telephones, and, if so, b) skipping over such telephone numbers, i.e., those of disconnected telephones, so that no attempt is made to complete a PCS call to a disconnected telephone.