So, we recommend you to turn this feature only when someone is irritating you. Though, this feature is might seem useful, it may create an emergency problem at a time. In short, you will not receive his calls. After turning this feature on, if someone calls you on WhatsApp, his call will hang up before reaching you. You can block the incoming call from any of your friends by going to their profile.
Freeze Last Seen: Enabling this feature will let you use WhatsApp without any worries as your last seen won't be visible to the.