SMS recording, changing cell phones, anything else?

If you are a Unicom user, you need to check the details of SMS and MMS. After logging in to China Unicom's mobile phone business hall, you can click Service > Inquiry > Telephone Fee Business Inquiry > SMS MMS Details on the homepage to inquire about the details of SMS MMS within six months (SMS MMS Details only provide the records of the last six months).

Tips: The above paths are subject to the information actually displayed on the query page.