Some manufacturers will apply their own features on top of the base Android software. This gives their devices unique properties that aren't otherwise found on standard Android devices. Here are a few common carriers and how to block a call with their devices. If yours isn't listed, search online for steps that match your phone model.
LG
- Open the Phone app.
- Go to Call Settings from the upper right menu.
- Choose Reject Calls.
- Add the number you want to block using the + sign.
Huawei / Honor
- Open the Dialer app.
- Find the number you want to block.
- Press and hold the number and choose Block contact.
HTC
- Open the Phone app.
- Tap and hold the number you want to block.
- Choose Block Contact then OK.
Samsung
- Open the Phone app.
- Find a call from the number you want to block.
- Open the menu in the upper right and choose Add to Auto-Reject List.