Mot-clefs : 即時(shí)(shí)通訊___________________________，企業(yè)(yè)(yè)(yè)(yè)(yè)(yè)(yè)溝通________________，龍笛即時(shí)(shí)通_______________________，視頻會(huì)議________________________，集成開發(fā)(fā)(fā)(fā)(fā)(fā)(fā)(fā)______________，金笛短信