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