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