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