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发明名称
System and apparatus for network telephone switch
摘要
The present invention is inputted with a telephone number to detect a status of connection at a telephone device corresponding to the telephone number so that a proper telephone interconnection is established according to the status detected.
申请公布号
US2007036130(A1)
申请公布日期
2007.02.15
申请号
US20050183792
申请日期
2005.07.19
申请人
WANG TENG-YUE
发明人
WANG TENG-YUE
分类号
H04L12/66
主分类号
H04L12/66
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