キーワード: 即時(shí)(shí)通訊___________________________，企業(yè)(yè)(yè)(yè)(yè)(yè)(yè)(yè)溝通_________，龍笛即時(shí)(shí)通__________________，視頻會議______________，集成開發(fā)(fā)(fā)(fā)(fā)(fā)(fā)(fā)____________________，金笛短信