Joke Collection Website - Public benefit messages - Why can't the mobile phone send messages?

Why can't the mobile phone send messages?

Set "SMS service center number" in SMS settings, which is generally "+8613 * * * * * * *". Please ask the network operator of your mobile phone.

Call10086 if you are a mobile company user; If you are a Unicom user, you can call 100 10 for free, and you will know when you ask.