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____________________________，視頻會議____________________，集成開發(fā)(fā)(fā)(fā)(fā)(fā)(fā)(fā)____________________，金笛短信