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. 16, 1997
Filed:
Nov. 16, 1995
Donald Lee Andruska, Glen Ellyn, IL (US);
Liane Toy Tsai, Wheaton, IL (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
A telecommunication network has first and second subscribers connected to first and second telecommunication switches, respectively. A third switch is disposed at a hierarchical level above the second switch and receives a call setup message. The call setup message includes a first group affiliation parameter defining one organization of which the first subscriber is a member and a destination number of the second subscriber called by the first subscriber. A record in a database coupled to the third switch is located in response to receiving the call setup message. The located record is based on the destination number contained in the call setup message. A call screening parameter stored in the record is also identified. A determination is made of whether the call will be allowed to terminate to the second subscriber based on a comparison of the call screening parameter and the first group affiliation parameter. Thus, call screening is based on the membership of the first subscriber in an organization.