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:
Aug. 21, 2012
Filed:
Dec. 11, 2008
Applicants:
Shingo Fujimoto, Kawasaki, JP;
Masahiko Murakami, Kawasaki, JP;
Ryuichi Matsukura, Kawasaki, JP;
Inventors:
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 1/64 (2006.01);
U.S. Cl.
CPC ...
Abstract
If a call session has been established between terminal apparatuses on the sending side and receiving side when a voice packet is received from the terminal apparatus on the receiving side, a firewall apparatus sends the received voice packet to the terminal apparatus on the sending side. On the other hand, if a call session has not been established when a voice packet is received, the firewall apparatus starts buffering received voice packets. When a call session is established, the firewall apparatus sends the buffered voice packets to the terminal apparatus on the sending side.