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