Turning off the silence of unknown callers

Settings>Apps>Phone>Silence Unknown Callers.

Turn it off there.

How about a better solution, such as allowing specific people to ring while silencing everyone else?

Here’s how to configure your iPhone to ring for specific people when it’s on silent:

1. Open Settings.
2. Tap Focus, then choose a Focus (e.g., Do Not Disturb, Personal, Sleep, or Work).
3. Tap People, then tap Allow Notifications From.
4. Tap the Add People button, then select from your contacts.

Good luck! 👋🏼😉

Follow the steps proved by KiltedTim. There will be a on/off slider there to turn off Silence Unknown Callers.