US 7,321,585 B2
Data communication apparatus and data communication method
Yoshihiro Noguchi, Kanagawa (Japan); and Motoyasu Ohno, Tokyo (Japan)
Assigned to Matsushita Electric Industrial Co., Ltd., Osaka (Japan)
Filed on Oct. 30, 2003, as Appl. No. 10/695,943.
Claims priority of application No. 2003-286358 (JP), filed on Aug. 05, 2003.
Prior Publication US 2005/0041643 A1, Feb. 24, 2005
Int. Cl. H04L 12/66 (2006.01); H04J 1/02 (2006.01); H04J 3/06 (2006.01)
U.S. Cl. 370—352  [370/493; 370/509] 12 Claims
OG exemplary drawing
 
1. A data communication apparatus that exchanges a voice packet via an IP network, the apparatus comprising:
a data processor that executes a standard communication mode and a high-speed communication mode, the voice packet including non-voice data and being exchanged at a predetermined transfer rate via the IP network in the standard communication mode and at a rate faster than the predetermined transfer rate via the IP network in the high-speed communication mode, the standard communication mode and the high-speed communication mode being interchangeably executed;
an acceptor that obtains capability information of a remote apparatus in accordance with a predetermined communication protocol; and
a controller that selects the high-speed communication mode for execution based on a determination, using the capability information, that the remote apparatus is configured to execute the high-speed communication mode.