Mot-clefs : 即時(shí)(shí)通訊___________________，企業(yè)(yè)(yè)(yè)(yè)(yè)(yè)溝通_______________，龍笛即時(shí)(shí)通________，視頻會(huì)議_________________________，集成開發(fā)(fā)(fā)(fā)(fā)(fā)(fā)_________，金笛短信