Administrative Regulations for Equal Access Services of Telecommunications Enterprises Article 21

When a selection service provider leases or lends subscribers’ numbers for other selection service providers to provide telecommunication services, it shall not restrict other selection service providers from providing equal access service, and shall negotiate with other selection service providers about items specified in Articles 3 to 8, Paragraph 1 to Paragraph 3 of Article 9, Article 10, Paragraph 2 and Paragraph 3 of Article 13, Paragraph 2 of Article 14, Article 15, and Article 18. If the selection service providers who rent or borrow the subscribers’ numbers in the preceding paragraph violates the relevant provisions of these Regulations, it shall not be exempted from its liability due to the intentional or negligent acts of its partner.
中文原文 電信事業平等接取服務管理辦法第21條
選接服務提供者出租、出借用戶號碼供他選接服務提供者提供電信服務時,不得限制他選接服務提供者提供平等接取服務,並應與其協商第三條至第八條、第九條第一項至第三項、第十條、第十三條第二項、第三項、第十四條第二項、第十五條及第十八條所定事項。
前項租用或借用用戶號碼之選接服務提供者違反本辦法相關規定時,不因其合作對象之故意或過失所致而免除其責任。

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