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