キーワード: 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)議________________________，集成開發(fā)(fā)(fā)(fā)(fā)(fā)(fā)(fā)(fā)____________________，金笛短信