請教Fitwxc, VOIP可以傳遞水表數字嗎?

來源: 1mm 於 2009-10-21 11:03:29 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

固定電話線連結水表.有VOIP後想取消這固定電話線.謝

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