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:
Jan. 31, 2012
Filed:
Mar. 01, 2007
Takahiro Sasaki, Koriyama, JP;
Kazuhiko Kubo, Koriyama, JP;
Takahiro Sasaki, Koriyama, JP;
Kazuhiko Kubo, Koriyama, JP;
Hitachi Communication Technologies, Ltd., Tokyo, JP;
Abstract
The total system, which is operated by SIP (Session Initiation Protocol) call sequence and SIP call replacement sequence, comprises control part which includes sequence part for immediately performing the SIP call replacement sequence upon detecting communication of call forwarding or proxy response, SIP exchange equipment which includes storage part for storing sequence program of the call forwarding and proxy response, SIP telephonesto, and a network such as Internet or wide LAN to which the SIP exchange equipment and SIP telephonestoare connected, so that it is able to provide the SIP exchange system for agreeing a final party in communication and party number display, even an party responds the incoming call is changed by the call forwarding or proxy response.