Blocking Messenger calls can be a useful way to manage your privacy and avoid unwanted interruptions. When you block a contact on Messenger, they will no longer be able to call you through the app. You can block individual contacts or entire groups of people.
There are several reasons why you might want to block Messenger calls. For example, you might want to block someone who is harassing you or sending you unwanted messages. You might also want to block calls from people you don’t know or from businesses that are trying to sell you something.