Can the mobile phone send short messages to Unicom? How come?

Of course, mobile phones can send short messages to Unicom users. As long as your mobile phone card has the SMS function enabled, you can send it. You can enter the content of the short message to be sent and the number of the recipient in the mobile phone short message bar, and then press the send button to send it. If you still don't know how to operate it, please refer to the manual of your mobile phone or ask friends and relatives around you. The operation steps of different mobile phones may be slightly different.