Telecommunications Act Article 29

Except for indoor relocation, the function, purpose or installation site of telecommunications lines facilities and equipment leased to users by a telecommunications enterprise shall not be altered by users or others without authorization.
中文原文 電信法第29條
電信事業提供用戶租用之電信機線設備,除宅內移動外,用戶或他人不得擅自變更其性能、用途或裝設地址。

English translation for reference only; the Chinese text prevails. Not legal advice.