Regulations for Administration on Fixed Network Telecommunications Business Article 43

By and between any two operators, when one requests for network interconnection with another, except as otherwise provided by the laws and regulations, the other cannot refuse.The matters relating to arrangement for network interconnection, calculation of fees, and negotiations and conciliation procedures, and so on, as referred to in the preceding Paragraph shall be made in accordance with the Regulations Governing Network Interconnection among Telecommunications Enterprises promulgated by the competent authority.
中文原文 固定通信業務管理規則第43條
經營者相互間,有一方要求與他方之網路互連時,除法令另有規定者外,他方不得拒絕。
前項網路互連之安排、費率計算、協商及調處程序等相關事項,依主管機關所定電信事業網路互連管理辦法之規定辦理。

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