キーワード: 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)(huì)議_____，集成開發(fā)(fā)(fā)(fā)(fā)(fā)(fā)(fā)(fā)____________________________，金笛短信