Unblock Messenger Call !!better!! -

: Tap the three horizontal bars (Menu) in the top-left corner, then tap the gear icon (Settings) in the top-right.

: Tap the name of the person you wish to reach. Select Unblock Messages and Calls and confirm your choice in the pop-up menu. unblock messenger call

If your goal is practical application rather than academic study, here are the standard methods used to bypass these blocks: : Tap the three horizontal bars (Menu) in