キーワード: 即時(shí)(shí)(shí)(shí)通訊___________________，企業(yè)(yè)(yè)(yè)(yè)(yè)(yè)(yè)(yè)(yè)(yè)溝通__________________________，龍笛即時(shí)(shí)(shí)(shí)通________________，視頻會(huì)(huì)議________________，集成開發(fā)(fā)(fā)(fā)(fā)(fā)(fā)(fā)(fā)(fā)(fā)____________________________，金笛短信