Mobile phones can surf the Internet, but they can't send and receive short messages. What's the matter with someone calling from an unknown number?

I don't know what brand of mobile phone you are using

Maybe there is something wrong with your mobile phone.

Check whether there is something wrong with your mobile phone first.

If there is something wrong with your mobile phone,

You can go to Ajmead for maintenance.

More convenient

You can enjoy the service without going out.