謝謝大俠：設置calling card, phone feature or dial plan?

來源: 於 2009-10-16 20:34:02 [舊帖] [給我悄悄話] 本文已被閱讀：次

I understand the 電話本裏加前綴. Could you please give a little more details on 設置calling card? Is it a feature of phone or dial plan?