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