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