Problematic callers can be blocked on a per-number basis on an iPhone -- the process is simple. But how do you unblock a number if you've made a mistake?

This step-by-step guide will help you to easily block and unblock someone on WhatsApp. Check out guide for both Android and iOS.

While it makes sense to block some numbers, there may come a time when you change your mind—or block the wrong person—and have to scramble to figure out how to unblock someone on your iPhone.

Later on, if you change your mind and want to unblock that contact on WhatsApp, you can also do that. So here’s the step-by-step process to block and unblock a contact on WhatsApp.

This guide is designed to show you how to unblock a number on your iPhone. In the modern digital world, our phones have become our primary means of communication. Our mobile phones serve as our ...

Thankfully, it's pretty easy to unblock a blocked number on your iPhone. All you have to do is go to your Settings, read down, and select Phone.

If you don't want certain numbers or contacts messaging or calling you on WhatsApp, you can block them by adding them to your block list.

You can't see blocked messages from a number you've blocked on an iPhone, so you'll have to unblock that number if you want to receive texts from it.