基本解釋(Public Switched Telephone Network)公共開關電話網絡; 一種常用舊式電話系統(tǒng)同根派生 PSTN相關詞英漢例句How to switch VoIP and PSTN mode on my phone set ? 請問我要在話機上如何操作,才能切換網絡電話與傳統(tǒng)市話的線路呢?PSTN?Public?switched?telephone?network? 公共電話交換網?Frequently, the medium that is used in the PSTN is copper. PSTN中常用的介質是銅線。The process of setting up a data transfer on a PSTN line. 在公用電話交換網(PSTN)線路上建立數據傳輸的過程。Then I began to think how much a low cost PSTN phone is. 我就想啊,一個低成本的普通電話到底要多少錢呢?PSTN更多例句