OnePlus How to enable or disable "Fixed Dialing Numbers"
OnePlus 3091The phone app on the OnePlus smartphone includes a feature to set up a call restriction and allow only specified phone numbers to be called or to make calls themselves.
This function serves as a safety feature when setting up a smartphone for children, for example.
After successful activation the allowed phone numbers can be entered in the same menu item.
Note: In order to FDN, the PIN2 is required, which can be found in the documentation of the SIM card.
Otherwise please contact the network provider support.
Android 10 | OxygenOS 10.0
![Step 1: Open the Phone app Fixed dialing numbers - Open the Phone app](https://media.techbone.net/img/450-15650-how-to-enable-or-disable.webp)
![Step 2: Open the menu Fixed dialing numbers - Open the menu](https://media.techbone.net/img/450-15651-how-to-enable-or-disable.webp)
![Step 3: Open the Settings Fixed dialing numbers - Open the Settings](https://media.techbone.net/img/450-15652-how-to-enable-or-disable.webp)
![Step 4: Tap on Call accounts Fixed dialing numbers - Tap on Call accounts](https://media.techbone.net/img/450-15653-how-to-enable-or-disable.webp)
![Step 5: Choose a SIM card (Dual SIM) Fixed dialing numbers - Choose a SIM card (Dual SIM)](https://media.techbone.net/img/450-15654-how-to-enable-or-disable.webp)
![Step 6: Tap on Fixed Dialing Numbers Fixed dialing numbers - Tap on Fixed Dialing Numbers](https://media.techbone.net/img/450-15655-how-to-enable-or-disable.webp)
![Step 7: Tap on Enable FDN Fixed dialing numbers - Tap on Enable FDN](https://media.techbone.net/img/450-15656-how-to-enable-or-disable.webp)
![Step 8: Enter the PIN2 and tap OK Fixed dialing numbers - Enter the PIN2 and tap OK](https://media.techbone.net/img/450-15660-how-to-enable-or-disable.webp)
- Open the Phone app
- Open the menu
- Open the Settings
- Tap on Call accounts
- Choose a SIM card (Dual SIM)
- Tap on Fixed Dialing Numbers
- Tap on Enable FDN
- Enter the PIN2 and tap OK