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