Keyword: 即時(shí)通訊__________________________，企業(yè)(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)(fā)________________________________，金笛短信