Hero, help! How can a mobile phone make others unable to get through or send a short message to Unicom card?

Generally, there are blacklist settings in mobile phones. After setting it, the other party can't call again. But SMS can't be set directly. If it is some harassment or advertising information, you can report spam messages. In addition, there will be similar value-added services in some places to achieve this goal. If it can be used after application, please contact local customer service for details.