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