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Title:
VoIP電話システムおよびVoIP電話システムにおける通信制御方法
Document Type and Number:
Japanese Patent JP4020819
Kind Code:
B2
Abstract:

To realize a suspending/forwarding function without providing additional functions, such as a suspension/forwarding function and the like, to a telephone terminal in a VoIP system.

An audio data transmission line control means 15A for forming an audio data transmission line is provided besides a main device 12A which receives or transmits control messages related to calls. Address information for transmitting or receiving the audio data in an originating call side and a terminating call side is transmitted from the main device 12A to the audio data transmission line control means. The main device 12A transmits address information for transferring the audio data of the audio data transmission line control means 15A to the originating call side and the termination call side. The originating call side and the termination call side utilize the address information for transferring the audio data of the audio data transmission line control means 15A as the address information of a destination to whom the audio data are transmitted, whereby the audio data can be transmitted between the originating call side and the termination call side through the intermediary of the audio data transmission line control means 15A.

COPYRIGHT: (C)2005,JPO&NCIPI


Inventors:
大坂 貢
佐々木 淳二
三浦 泰弘
中川 督之
小山 謙一
大北 規道
朝倉 順治
Application Number:
JP2003109970A
Publication Date:
December 12, 2007
Filing Date:
April 15, 2003
Export Citation:
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Assignee:
サクサ株式会社
東日本電信電話株式会社
西日本電信電話株式会社
International Classes:
H04Q3/58; H04L12/66; H04L12/70; H04M3/00
Domestic Patent References:
JP2003078571A
JP2002209025A
JP2001223747A
Foreign References:
WO2003053029A1
Attorney, Agent or Firm:
佐藤 正美