From Settings on your iPhone: Tap Apps > Phone > Silence Unknown Callers. Toggle on Silence Unknown Callers.

The Google Phone app rarely gets major updates, but it looks like a change to the incoming call interface ... answering or declining calls. This approach mirrors the iPhone’s dialer screen ...

Apple iPhone users already had access to this ... With the new update, the incoming call UI has been revamped. When you are on a voice call on WhatsApp and receive another call, you will get ...