Mot-clefs : 即時(shí)(shí)通訊___________________，企業(yè)(yè)(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)(fā)(fā)__________________________，金笛短信