Will Unicom card generate traffic when receiving SMS?

Receiving multimedia messages will require traffic downloading, and short messages will not generate traffic. Receiving text messages is free, and sending text messages is to deduct the balance of phone bills.

Short message is text or digital information sent or received directly 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.