Joke Collection Website - Blessing messages - Why can't my mobile phone send short messages suddenly?

Why can't my mobile phone send short messages suddenly?

I guess the number of the SMS center is wrong. I don't know your number. If Unicom calls 100 10, call 10086 to ask the service center. Our short message center number here is +86 13800 100500.

Unicom is+8613010112500. Calling customer service is the best way. It's important to remember the "+"sign!