Palavra chave: 即時(shí)通訊_________________________，企業(yè)(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)(fā)________________________，金笛短信