Why can't China Telecom Star Card 39 yuan 2022 send short messages?

The SMS number is set incorrectly. 39 yuan 2022 Telecom Star Card is a preferential and easy-to-use calling card launched by China Telecom. Star card has fast network speed, low tariff, and more importantly, more traffic, which is more in line with the usage habits of young people. The card can't send SMS because the SMS number is set incorrectly. The solution is to open the settings, re-enter the SMS number and save it. Short message is text or digital information sent or received directly by users through mobile phones or other telecommunication terminals.