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