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. 14, 1999
Filed:
Jan. 31, 1997
Applicant:
Inventors:
Blake F Lefort, Ottawa, CA;
R Blair Lothian, Regina, CA;
Henry Wai Kwok, Richmond, CA;
Gary Bartholomew, Ottawa, CA;
Frankie Chun-Keung Tom, Calgary, CA;
Assignee:
Stentor Resource Centre, Inc., Ottawa, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M / ; H04M / ;
U.S. Cl.
CPC ...
379220 ; 379137 ; 379221 ; 379224 ; 379230 ;
Abstract
A system and method of preventing call congestion on outgoing trunks of a local telephone exchange is provided. A virtual trunk group representing a percentage of the total trunk capacity is assigned at the local exchange for carrying calls which are likely to cause congestion. In one embodiment of the invention, call segregation is achieved by using the prefixed dialling code 1+1 followed by the destination number. In another embodiment of the invention, segregation is dynamically achieved using Advanced Intelligent Network (AIN) routing.