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发明名称
Method for Preventing Channel-Collision of QSIG-VoIP Gateway
摘要
申请公布号
KR100475375(B1)
申请公布日期
2005.03.10
申请号
KR20020078978
申请日期
2002.12.12
申请人
发明人
分类号
H04L12/66;(IPC1-7):H04L12/66
主分类号
H04L12/66
代理机构
代理人
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地址
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