Palavra chave: 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(kāi)發(fā)(fā)(fā)(fā)(fā)(fā)(fā)____________________，金笛短信