To save money, for example if you are in another country, you can activate call barring on your Huawei device. The following options can be (de)activated individually:

Note: If you use dual SIM, you can set up call barring individually for each SIM.

Please retrieve your call barring password from your mobile carrier.

Android 10 (EMUI 10.0)
Step 1:  Open the  Phone app
Step 2:  Open the  menu
Step 3:  Open the  settings
Step 4:  Tap on  More
Step 5:  Tap on  Call barring
Step 6:  Activate or deactivate the desired  call barring setting
  1. Open the Phone app
  2. Open the menu
  3. Open the settings
  4. Tap on More
  5. Tap on Call barring
  6. Activate or deactivate the desired call barring setting

Huawei Instructions
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