Mot-clefs : 即時(shí)(shí)通訊___________，企業(yè)(yè)(yè)(yè)(yè)(yè)(yè)溝通_______________，龍笛即時(shí)(shí)通______________________，視頻會議_____________，集成開發(fā)(fā)(fā)(fā)(fā)(fā)(fā)_____________________，金笛短信