Joke Collection Website - Public benefit messages - I called the other party and said it had been restricted. What happened?

I called the other party and said it had been restricted. What happened?

Analyze several reasons:

1. The calling subscriber has no network and no signal at present;

2. This state will occur when the user is in arrears;

3. The user ordered a malicious ring back tone.

4. This will also happen if the user is blacklisted by the other party.