Mot-clefs : 即時(shí)通訊________________________，企業(yè)(yè)(yè)(yè)(yè)(yè)(yè)溝通_______，龍笛即時(shí)通______________________，視頻會(huì)議______，集成開(kāi)發(fā)(fā)(fā)(fā)(fā)(fā)(fā)_____________，金笛短信