发明名称 Systems and methods for facilitating conference calls using multiple media streams
摘要 <p>Systems and methods are described that facilitate a conference call between a plurality of communication devices. The method may comprise: providing a first primary communication device; providing a second primary communication device; providing a conference call controller; providing a first alternate communication device; establishing a first control link between the first primary communication device and the conference call controller; establishing a media link between the first and second primary communication devices via the conference call controller; and establishing a second media link between the first alternate communication device and the conference call controller. The second media link may be established upon the conference call controller receiving a link request from the first primary communication device via the control link. In some embodiments, the first media link conveys a first media signal which is different than a second media signal conveyed by the second media link.</p>
申请公布号 EP2224667(B1) 申请公布日期 2014.07.16
申请号 EP20090153867 申请日期 2009.02.27
申请人 BLACKBERRY LIMITED 发明人 GISBY, DOUGLAS;MCCOLGAN, BRIAN EDWARD ANTHONY;LABRADOR, CHRISTOPHER;ANDREWIN, KEVIN
分类号 H04L29/06;H04M3/56 主分类号 H04L29/06
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