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:
Dec. 21, 2010
Filed:
Aug. 31, 2005
Kazumasa Azuma, Koriyama, JP;
Kazumasa Azuma, Koriyama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
To allow a call received from an accommodated device to arrive at the other party by diverting the call from an IP network to a detour network even with different numbering systems between communications over the IP network and over the detour network. A VoIP gateway apparatusincludes an ISDN terminal side IF portion, an IP network side IF portion, an ISDN network side IF portion, a condition storage portion, a detour determining portion, and a number editing portion. The detour determining portiondetermines whether a call arriving at the ISDN terminal side IF portionsatisfies a detour condition stored in the condition storage portionor not. If so, the number editing portionedits the called party number of the call under a number editing condition stored in the condition storage portionand then transmits it from the ISDN network side IF portion. If not, the call is transmitted from the IP network side IF portionwithout editing the called party number.