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发明名称
VOIP SERVICE SYSTEM AND ITS METHOD OF ACQUIRING CALLER INFORMATION USING QUESTION
摘要
申请公布号
KR20050076145(A)
申请公布日期
2005.07.26
申请号
KR20040003966
申请日期
2004.01.19
申请人
KT CORPORATION
发明人
JIN, YOUNG GYU;CHOI, WON SEOCK;LEE, SOONG BOK;BAE, HAN SOO;YUN, HYE JEONG;JEON, YA ME;JANG, SE HUN
分类号
H04M3/42
主分类号
H04M3/42
代理机构
代理人
主权项
地址
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