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发明名称
Method and apparatus for interfacing analog telephone apparatus to a digital, analog or hybrid telephone switching system
摘要
申请公布号
HK1032875(A1)
申请公布日期
2007.11.23
申请号
HK20010102049
申请日期
2001.03.21
申请人
HELLO DIRECT INC.
发明人
STELMAN, BRUCE, W.
分类号
H04Q;H04Q3/58;H04M;H04M1/738;H04M3/42;H04Q3/42;H04Q3/62
主分类号
H04Q
代理机构
代理人
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地址
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