Schlüsselwort: 即時(shí)(shí)(shí)通訊____________________，企業(yè)(yè)(yè)(yè)(yè)(yè)(yè)(yè)(yè)(yè)溝通_____________________________，龍笛即時(shí)(shí)(shí)通_______________________，視頻會(huì)(huì)議___________________，集成開發(fā)(fā)(fā)(fā)(fā)(fā)(fā)(fā)(fā)(fā)________________________，金笛短信