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:
May. 29, 2012
Filed:
Jan. 11, 2010
Michio Iguchi, Yokohama, JP;
Arata Nakagoshi, Yokohama, JP;
Ichiro Kohashi, Yokohama, JP;
Tsutomu Sano, Yokohama, JP;
Michio Iguchi, Yokohama, JP;
Arata Nakagoshi, Yokohama, JP;
Ichiro Kohashi, Yokohama, JP;
Tsutomu Sano, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In a case where a cellular phone exists outside a WOS system service area, the cellular phone receives a not-connectable signal and an audio message from a mobile switching controller. The cellular phone conducts disconnection processing with the not-connectable signal as a turning point. Moreover, the cellular phone stores an extension number and converts a dedicated special number into an external number for retransmission, thus establishing connection to a PBX. After the reception of a connection-accepted signal and an automatic exchange answer message from the PBX, the cellular phone automatically transmits the stored extension number.