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