Schlüsselwort: 即時(shí)通訊_____________________，企業(yè)(yè)(yè)(yè)(yè)(yè)(yè)(yè)溝通_____，龍笛即時(shí)通________________________，視頻會議_____________________，集成開發(fā)(fā)(fā)(fā)(fā)(fā)(fā)(fā)_______________________，金笛短信