Mot-clefs : 即時(shí)(shí)通訊____________，企業(yè)(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)(fā)____________________，金笛短信