Schlüsselwort: 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)議_______________________，集成開(kāi)發(fā)(fā)(fā)(fā)(fā)(fā)(fā)____________________，金笛短信