How long will the phone records and short messages in the mobile business hall be kept?

in the mobile background system, the voice call records for the last six months (this month+the first five months) are reserved for the conference customers (for example, the starting time, the number of the other party, whether the mode is calling or receiving, the call duration, the cost, etc.), the internet access (for example, the starting time, the internet access location, the total internet access duration, the total traffic used, the cost, etc.), and the short multimedia messages (for example, the starting time, the telephone number, the telephone number, There is no data to save further.

Gansu mobile customers can make inquiries through business hall, palm hall, net hall, micro hall and other channels.

you can follow and bind the official micro-channel of Gansu Mobile WeChat official account "China Mobile 186". After logging in, click the menu My Service-Personal Homepage-Business in this Province-My-Telephone Bill, and you can find the detailed records.