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