Mot-clefs : 即時(shí)(shí)通訊____________________，企業(yè)(yè)(yè)(yè)(yè)(yè)溝通___________，龍笛即時(shí)(shí)通____________，視頻會(huì)(huì)議___________，集成開(kāi)發(fā)(fā)(fā)(fā)(fā)(fā)__________________，金笛短信