Mot-clefs : 即時通訊_________________________，企業(yè)(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)(fā)___________，金笛短信