What do you mean, messages are intercepted without notification?

When the short message is intercepted, it means that the short message is spam and has no reading value. Short message: ShortMessageService, referred to as short message service, refers to the text or digital information directly sent or received by users through mobile phones or other telecommunication terminals. The number of characters that users can send and receive SMS at a time is 160 English or numeric characters or 70 Chinese characters.