Title:
GATEWAY DEVICE, AUDIO COMMUNICATION SYSTEM, AND AUDIO COMMUNICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2005/011252
Kind Code:
A1
Abstract:
A gateway device (23) arranged in a telephone exchange station includes: an audio communication section (23a) for performing audio communication via a metallic cable (3) with a telephone device (13); an identifier generation section (23b) for generating a communication source identifier and a communication destination identifier based on the control signal from the telephone device (13); a conversion section (23d) for converting the audio signal and packet signal associated with the audio communication; a packet transmission/reception section (23c) for transmitting/receiving a packet signal according to the communication source identifier and the communication destination identifier; and a judgment section (23e) for making a subscriber exchange (24) output an audio signal without converting it into a packet signal according to the communication destination identifier. Thus, it is possible to simplify the facility of a subscriber and reduce the installation work required when introducing a telephone.
Inventors:
SON MASAYOSHI (JP)
Application Number:
PCT/JP2004/010732
Publication Date:
February 03, 2005
Filing Date:
July 28, 2004
Export Citation:
Assignee:
SOFTBANK BB CORP (JP)
SON MASAYOSHI (JP)
SON MASAYOSHI (JP)
International Classes:
H04M7/00; (IPC1-7): H04M11/06; H04M3/00; H04L12/66
Domestic Patent References:
| WO1999009716A1 | 1999-02-25 | |||
| WO2001017219A1 | 2001-03-08 |
Foreign References:
| JP2003143323A | 2003-05-16 | |||
| JP2003333178A | 2003-11-21 |
Other References:
See also references of EP 1655940A4
Attorney, Agent or Firm:
Sasaki, Atsurou (Takashima Nishi-ku, Yokohama-sh, Kanagawa 11, JP)
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