If the above method doesn't work or if you prefer a different approach, you can unblock a contact through the Settings app.
: Once the Phone app is open, navigate to the "Recents" tab, which is usually located at the bottom of the screen. This tab displays a list of all your recent calls. how to unblock caller in iphone
For those who use iMessage frequently, the process can also be handled within the Messages app. This is helpful if you blocked someone specifically during a text conversation. Open the conversation with the blocked person, tap their name or profile icon at the top of the screen, and then tap Info. From the contact details page, scroll down and select Unblock this Caller. Once this is done, their messages will once again appear in your inbox, though you will not receive any texts they tried to send while they were blocked. If the above method doesn't work or if