關鍵字: 即時(shí)(shí)通訊___________________，企業(yè)(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)(kāi)發(fā)(fā)(fā)(fā)(fā)(fā)(fā)___________，金笛短信