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