Schlüsselwort: 即時(shí)(shí)通訊___________________，企業(yè)(yè)(yè)(yè)(yè)(yè)(yè)(yè)(yè)溝通________，龍笛即時(shí)(shí)通________________，視頻會(huì)議________，集成開發(fā)(fā)(fā)(fā)(fā)(fā)(fā)(fā)(fā)______________________，金笛短信