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