Palavra chave: 即時(shí)(shí)(shí)通訊____________，企業(yè)(yè)(yè)(yè)(yè)(yè)(yè)(yè)(yè)溝通_________________________，龍笛即時(shí)(shí)(shí)通_____________，視頻會(huì)(huì)(huì)議_______________，集成開發(fā)(fā)(fā)(fā)(fā)(fā)(fā)(fā)(fā)________________________，金笛短信