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