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