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