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:
Aug. 25, 2026

Filed:

Jan. 24, 2022
Applicant:

Nec Platforms, Ltd., Kawasaki, JP;

Inventors:

Hidetoshi Eshiro, Kanagawa, JP;

Hiroyuki Ebihara, Kanagawa, JP;

Tomohiro Ohno, Kanagawa, JP;

Assignee:

NEC Platforms, Ltd., Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 3/42 (2006.01); H04Q 3/00 (2006.01);
U.S. Cl.
CPC ...
H04M 3/42314 (2013.01); H04Q 3/0025 (2013.01); H04Q 2213/1322 (2013.01);
Abstract

A first gateway registers an extension number of a terminal apparatus to an extension control means. A flow control means routes an outgoing call originated from the terminal apparatus and an outgoing call addressed to the terminal apparatus between the first gateway and a second gateway. When receiving the outgoing call originated from the terminal apparatus from the first gateway, the extension control means processes the outgoing call as an outgoing call from the extension number of the terminal apparatus. In addition, when an outgoing call addressed to the extension number of the terminal apparatus is made, the extension control means transmits the outgoing call addressed to the terminal apparatus to the first gateway.


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