Generally, red diamonds, yellow diamonds and blue diamonds can be opened. For details, please call the local telecom customer service hotline 10000 for consultation.

I hope it helps you. If you need to buy a machine or know the details of telecom charges, please go to Sichuan Telecom Tianyi Store, with authentic invoice, nationwide warranty, cash on delivery and full postage. At present, the activities at the end of the year are in full swing, and the purchase of the machine will send high phone bills.