Administrative Regulations for Equal Access Services of Telecommunications Enterprises Article 10
Selection service providers using mobile phone numbers shall provide call-by-call selection service to domestic roaming subscribers in accordance with the stipulations on the call-by-call selection service in these Regulations. The domestic roaming subscribers mentioned in the preceding paragraph refer to the subscribers who may use the mobile telecommunications network of selection service providers even though they have not reached any service agreement with the selection service providers, for their telecommunication enterprises have reached roaming agreement with the selection service providers. When the domestic roaming subscribers make international voice-based telecommunications through services provided by the selection service providers by means of pre-selection dialing, the selection service providers determine the telecommunication enterprises providing international Voice-based Telecommunications Universal Service. Provisions of the preceding three articles are applicable to domestic roaming subscribers.
中文原文 電信事業平等接取服務管理辦法第10條
使用行動通信號碼之選接服務提供者應依本辦法有關撥號選接之規定，向其國內漫遊用戶提供撥號選接服務。
前項所稱國內漫遊用戶，係指用戶未與選接服務提供者簽訂服務契約，而因其所屬電信事業與該選接服務提供者簽訂漫遊協定，致可使用該選接服務提供者之行動通信服務之用戶。
國內漫遊用戶以指定選接撥碼方式，使用選接服務提供者之服務並進行國際語音通信時，由選接服務提供者指定提供國際通信語音服務之電信事業。
前三條之規定，適用於國內漫遊用戶。
前項所稱國內漫遊用戶，係指用戶未與選接服務提供者簽訂服務契約，而因其所屬電信事業與該選接服務提供者簽訂漫遊協定，致可使用該選接服務提供者之行動通信服務之用戶。
國內漫遊用戶以指定選接撥碼方式，使用選接服務提供者之服務並進行國際語音通信時，由選接服務提供者指定提供國際通信語音服務之電信事業。
前三條之規定，適用於國內漫遊用戶。