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