Mot-clefs : 即時(shí)通訊_____________________，企業(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)____，金笛短信