Palavra chave: 即時通訊________________，企業(yè)(yè)(yè)(yè)(yè)(yè)(yè)(yè)溝通__________，龍笛即時通_______________，視頻會議_____________，集成開發(fā)(fā)(fā)(fā)(fā)(fā)(fā)(fā)_________________________，金笛短信