How to block and unblock phone numbers on an iPhone or Android smartphone

The smartphone is an invention that truly changed the course of the 21st century, helping us stay in touch with people who could be halfway around the world with a few screen taps. But sometimes, with some people, that is the last thing you want. This is why iPhones and Android smartphones come with a feature that allows you to block contacts. Here is how you can block and unblock selected contacts on your iPhone or Android device.

How to block someone on your iPhone
Go to your phone’s Settings and tap on “Phone”
Tap on “Blocked Contacts”
Tap the “Add New” option
Select the contacts that you want by entering their name or scrolling down the list