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发明名称
VOICE OVER INTERNET PROTOCOL (VOIP) LOCATION BASED CONFERENCING
摘要
申请公布号
EP1943793(A4)
申请公布日期
2009.11.11
申请号
EP20060816310
申请日期
2006.10.04
申请人
TELECOMMUNICATION SYSTEMS, INC.
发明人
CROY, JON;HINES, JOHN GORDON
分类号
H04L12/66;H04L12/18;H04M3/42;H04M3/56
主分类号
H04L12/66
代理机构
代理人
主权项
地址
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