Open the app (the grey gear icon).

This guide covers every method to unblock numbers on iOS, including how to manage your blocked contacts list and what happens once you hit unblock. Method 1: Unblock via the Phone App

What happens when I unblock a number?Once unblocked, the person can call you, send you SMS/MMS messages, and reach out via FaceTime. Their calls will ring through normally rather than going straight to voicemail.

To unblock someone:

If you don't see the number in your Recents, use Method 2.

You will see a list of all numbers and contacts you have blocked.