Keyword: 即時(shí)通訊____________________，企業(yè)(yè)(yè)(yè)(yè)(yè)(yè)(yè)溝通____________________________，龍笛即時(shí)通______________________，視頻會議________________，集成開發(fā)(fā)(fā)(fā)(fā)(fā)(fā)(fā)_________________，金笛短信