Palavra chave: 即時(shí)通訊____________________，企業(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)______________，金笛短信