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