Mot-clefs : 即時(shí)(shí)通訊______________，企業(yè)(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)(fā)_________________，金笛短信