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.

Date of Patent:
Dec. 27, 2005

Filed:

Jan. 23, 2001
Applicants:

Shunichi Shibata, Fukuoka, JP;

Fumikiyo Kikukawa, Fukuoka, JP;

Kenji Maeda, Fukuoka, JP;

Hirofumi Mitome, Fukuoka, JP;

Ryoji Matsuno, Fukuoka, JP;

Tsuyoshi Takehiro, Fukuoka, JP;

Hiroshi Yamamoto, Fukuoka, JP;

Toshiharu Eto, Fukuoka, JP;

Akihiro Horiuchi, Fukuoka, JP;

Inventors:

Shunichi Shibata, Fukuoka, JP;

Fumikiyo Kikukawa, Fukuoka, JP;

Kenji Maeda, Fukuoka, JP;

Hirofumi Mitome, Fukuoka, JP;

Ryoji Matsuno, Fukuoka, JP;

Tsuyoshi Takehiro, Fukuoka, JP;

Hiroshi Yamamoto, Fukuoka, JP;

Toshiharu Eto, Fukuoka, JP;

Akihiro Horiuchi, Fukuoka, JP;

Assignee:

Fujitsu Limited, Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L012/28 ; G01R031/08 ;
U.S. Cl.
CPC ...
Abstract

A method of connecting a line concentrator to other line concentrators in a switching system, wherein a switching unit accommodates the line concentrator is provided. The method includes the steps of analyzing a call received by the switching unit through the line concentrator, and connecting lines that are accommodated by the line concentrator and are connected to the other line concentrators without connecting through the switching unit when the call is detected to be made between the line concentrator and the other line concentrators. Thus, a call can be made to a specific dial number without connecting through the switching unit provided in the switching system. Additionally, a call can also be made by use of another switching unit when a communication path between the switching unit and the line concentrator is overcrowded.


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