Palavra chave: 即時(shí)(shí)通訊_______________，企業(yè)(yè)(yè)(yè)(yè)(yè)溝通___________________，龍笛即時(shí)(shí)通_______，視頻會(huì)(huì)議________________，集成開(kāi)發(fā)(fā)(fā)(fā)(fā)(fā)________，金笛短信