发明名称 Third party call control of all phones
摘要 A system and method for call control wherein a call received at a communication device may be controlled through an IP device connected to an IP network over which at least a portion of the call was routed. The IP device is connected to the IP network via a control gateway.
申请公布号 US7715421(B2) 申请公布日期 2010.05.11
申请号 US20040773640 申请日期 2004.02.05
申请人 AT&T INTELLECTUAL PROPERTY II, L.P. 发明人 CHEN YIHSIU;FISHER STEVE;FOLADARE MARK J.;GLAZER SAMUEL;GOLDMAN SHELLEY B.;KOWALSKI THADDEUS
分类号 H04J3/26;H04J3/22;H04L29/02;H04M3/42;H04M3/428;H04M3/533;H04M3/54;H04M3/56;H04M7/00;H04Q3/545 主分类号 H04J3/26
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