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)議_______________，集成開(kāi)發(fā)(fā)(fā)(fā)(fā)(fā)(fā)____________________，金笛短信