Keyword: 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(kāi)發(fā)(fā)(fā)(fā)(fā)(fā)(fā)(fā)(fā)_________________，金笛短信