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