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发明名称
A METHOD FOR PROVIDING TELEPHONE CONVERSATION SERVICE AMONG AT LEAST THREE PARTIES AND A SYSTEM THEREOF
摘要
申请公布号
KR20050080915(A)
申请公布日期
2005.08.18
申请号
KR20040009089
申请日期
2004.02.11
申请人
XENER SYSTEMS INC.
发明人
LEE, SEOK HO
分类号
H04M3/56
主分类号
H04M3/56
代理机构
代理人
主权项
地址
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