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