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Patent Searching and Data


Title:
無線電話システム
Document Type and Number:
Japanese Patent JP4309382
Kind Code:
B2
Abstract:

To provide a wireless telephone system for enabling a user to maximumly utilize network resources in a wireless section while securing the quality of a telephone conversation.

A communication path specification processor 34a specifies a communication path between a call origin and a call reception destination from in a network configuration database DB1 on the basis of an enquiry from an SIP server 1. A calculation processor 34b calculates resources in a wireless path consumed when a call is connected corresponding to a call connection request, if the wireless path is included in the specified communication path on the basis of a wireless IP telephone management database DB2. A determination processor 34c determines whether or not the quality of the telephone conversation is securable when consuming the calculated resources, and allows the SIP server 1 to execute the call connection only when the quality of the telephone conversation is securable.

COPYRIGHT: (C)2007,JPO&INPIT


Inventors:
Koichi Suzuki
Application Number:
JP2005216138A
Publication Date:
August 05, 2009
Filing Date:
July 26, 2005
Export Citation:
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Assignee:
Toshiba Corporation
International Classes:
H04W24/00; H04L12/70; H04L12/911; H04M3/00; H04W28/00; H04W72/04
Domestic Patent References:
JP2003179638A
JP2004135279A
JP200512655A
JP200573106A
JP2007521710A
JP2004312738A
JP200580157A
JP2005101690A
JP2005129981A
JP2002152224A
JP200186161A
Foreign References:
WO2005064955A1
WO2005051029A1
Other References:
信学技報 IN2003-256
信学技報 IN2001-213
Attorney, Agent or Firm:
Takehiko Suzue
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto