How to close Huawei Unicom's service?

Step 1: Take Huawei P20 as an example, open Huawei's mobile phone and click the dial icon on the desktop, as shown in the following figure:

Step 2: Enter the dialing interface of Huawei mobile phone, and click Unicom, as shown below:

Step 3: Click Account Settings in the long communication interface, as shown below:

Step 4: After entering the settings, you can see the calling items of Changlian, as shown in the following figure:

Step 5: Click Close Long Unicom Phone to successfully close Huawei Mobile Phone Long Unicom Phone, as shown below: