Title:
EXTENSION PHONE SYSTEM AND METHOD FOR CONSTITUTING EXTENSION PHONE SYSTEM
Document Type and Number:
Japanese Patent JP2008294560
Kind Code:
A
Abstract:
To provide a technology for reducing the cost in installing a plurality of extension phones at an extension phone system using a master device.
While connecting a wireless AP (Access Point) 3 and a master unit 21 to an extension network 4, a slave unit 22 is connected to the extension network 4 through the wireless AP 3. Then, the master device 1, which has the extension network 4 and an outside line network 5, manages association between the master unit 21 and the slave unit 22, which constitute extension phones 2. Voice is transmitted to the extension phones 2, and the voice level of the extension phones 2 is controlled from the master device 1, according to installation state of the slave unit 22 to the master unit 21.
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Inventors:
INO HITOSHI
NAGANO HIDEKAZU
NISHIMURA SHINJI
NAGANO HIDEKAZU
NISHIMURA SHINJI
Application Number:
JP2007135664A
Publication Date:
December 04, 2008
Filing Date:
May 22, 2007
Export Citation:
Assignee:
NAKAYO TELECOMMUNICATIONS
International Classes:
H04Q3/58; H04M1/725; H04W76/02; H04W84/10; H04W88/02
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