Regulations Governing Number Portability Article 8
Fixed Network Operators shall mutually provide Number Portability on a reciprocal basis, and shall conform in accordance with the principle of impartiality and reasonableness, and shall be non-discriminatory.
中文原文 號碼可攜服務管理辦法第8條
固網經營者間應以平等互惠之方式，相互提供號碼可攜服務，並應符合公平合理原則，不得為差別待遇。