Lower main device and non-IP terminal housing method
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United States of America Patent
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Dec 17, 2013
Grant Date -
Jun 20, 2013
app pub date -
Mar 11, 2011
filing date -
Oct 20, 2010
priority date (Note) -
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Abstract
The objective of the present invention is to provide a lower main device capable of connecting a non-IP terminal such as a digital terminal to an upper main device using an IP network and of accommodating call control. The lower main device behaves as one or more IP terminals toward the upper main device and houses one or more non-IP terminals which each correspond to the one or more IP terminals.
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