Palavra chave: 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(huì)議___________________，集成開發(fā)(fā)(fā)(fā)(fā)(fā)(fā)(fā)______________________，金笛短信