How do China Unicom and China Mobile check the phone bill?

To inquire about Unicom's phone bill, you can log in to Unicom's online business hall or mobile phone business hall client through Unicom's mobile phone number and service password to inquire about the phone bill. The specific query method is: 1. Unicom's online business hall: log in to Unicom's online business hall, and click "call charge inquiry" > "real-time call charge" or "account balance" on the home page to inquire about the usage of call charge or account balance. 2. log in to the client of the mobile phone business hall, and click "service" > "inquiry" > "real-time call charge (current call charge)". In addition to the above methods, you can also contact the local manual customer service or go to the business hall to check the phone bill of the month.