What should I do if I send text messages to foreign mobile phones?

Users can use the international short message service without applying. After editing the short message content, enter: international code (00)+ country code+user number at the sending number to send international short messages; The dialing mode of "+"+country code+user number is not supported at present. China mobile communication customers send international short messages to operators outside Chinese mainland in Chinese mainland, and the tariff standard is 1.00 yuan/message. After roaming to countries and regions outside Chinese mainland, the tariff standard for China mobile communication customers to use international short message service is: roaming short message sending tariff standard ×115%+1.00 yuan/article. China mobile communication customers receive international short messages for free.