Regulations Governing the Equal Access Service Article 21

If subscribers apply for using the long-distance or international network telecommunications service offered by Type I telecommunications carriers and Type II telecommunications carriers by means of call-by-call selection service, they shall put forward the applications in written form or in another appropriate way to the operators of the long-distance or international network telecommunications service or their representatives.Operators of the long-distance or international network telecommunications service shall confirm and register the information of subscribers who apply for the service of Paragraph 1, and keep the application data for at least one year after the contract of service is terminated; if they have not reached written service contract with subscribers, the rights and duties of both parties shall be determined by the model standard contract of service contract verified by the NCC.
中文原文 平等接取服務管理辦法第21條
用戶申請以撥號選接方式使用第一類電信事業及第二類電信事業所提供之長途或國際網路通信服務,應向提供長途或國際網路通信服務之經營者或其代理人以書面或其他適當方式提出。
長途或國際網路通信服務之經營者應確認及登錄申請第一項服務之用戶資料,並至少保留該申請資料至服務契約終止後一年;其未與用戶完成書面服務契約簽訂者,依經本會核定之定型化服務契約定其雙方之權利義務關係。

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