Schlüsselwort: 即時(shí)通訊________，企業(yè)(yè)(yè)(yè)(yè)(yè)(yè)(yè)溝通_________________________，龍笛即時(shí)通_______________________，視頻會(huì)議___________________________，集成開(kāi)發(fā)(fā)(fā)(fā)(fā)(fā)(fā)(fā)____________，金笛短信