Mot-clefs : 即時(shí)通訊___________________，企業(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)____________________，金笛短信