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