About international short messages and fetion. .

I remember that international short messages were one yuan each. I can't seem to send it by airmail. The network screen is closed. The international short message you send has an international number and an area code before the number. Fetion in China can only recognize 1 1 digits. In fact, Fetion is mainly based on the mobile phone number. For example, if the mobile phone stops, you can't use Fetion.