Mot-clefs : 即時(shí)通訊_______________________，企業(yè)(yè)(yè)(yè)(yè)(yè)(yè)(yè)溝通___________________，龍笛即時(shí)通_______________________，視頻會(huì)議____________________，集成開(kāi)發(fā)(fā)(fā)(fā)(fā)(fā)(fā)(fā)___________________，金笛短信