There is a text message saying that I have an appointment with a calling card.

In order to ensure that the real-name registration communication products under the customer's name are your own purchase intention and protect the legitimate rights and interests of users, you need to register in the real-name registration system when purchasing goods. Please prepare the original and copy of the registered ID card before signing (the courier needs to recycle the copy and bring it back to Unicom distribution center for your file), so please be sure to sign for it yourself. If the courier really can't sign for it himself or doesn't prepare the original and copy of the second-generation ID card, please make an appointment with the courier for the second delivery.