Joke Collection Website - Public benefit messages - SMS can be sent out, why does the other party's mobile phone always prompt that it is not answered for the time being?

SMS can be sent out, why does the other party's mobile phone always prompt that it is not answered for the time being?

If you call and beep, there will be a voice prompt and no one answers, then there may be two situations: 1. The other party blacklisted you. 2. Others just press dead and don't want to answer your phone. Normally, if no one answers, it will ring for a long time.