The Administrative Regulations on the Ship Radio Station Article 10

Ship radio station should comply with the related regulations of the telecommunications enterprises of each country, transmitting and receiving the messages for seafarers and the passengers, and collecting reasonable fees.
中文原文 船舶無線電臺管理辦法第10條
船舶無線電臺得依照各國電信事業機構之相關規章,收發旅客及船舶作業人員之電信,並收取費用。

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