发明名称 VOIP CONFERENCING
摘要 <p>A VoIP-based conferencing system readily handles different protocols, load balance media resources and deals with fail-over situations. The VOIP conferencing system has a gateway coupled to the PSTN (Public Switched Telephone Network). A Voice Server Director (VSD) is coupled to the gateway and performs the control function of the conferencing system. The VSD has a back-to-back user agent. The VSD controls a media server, which mixes the audio (signals), and the media server receives the data portion of a conference call from the gateway. The media server is coupled to a bridge that controls an on-going conference.</p>
申请公布号 EP2092722(B1) 申请公布日期 2014.04.23
申请号 EP20070862686 申请日期 2007.12.07
申请人 AMERICAN TELECONFERENCING SERVICES, LTD. 发明人 MARTIN, DOUGLAS J.;LEIGH, RANDOLPH J.;GHINAUDO, ANDREW DIONYSIUS;FRIES, ROBERT G.
分类号 H04M3/56;H04L29/06;H04M3/493;H04M7/12 主分类号 H04M3/56
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