After unblocking, ask the caller to send an iMessage or try calling twice within 3 minutes — iOS temporarily allows a second call from a blocked number if it’s an emergency (though unreliable for unblocking).
Even if you remove a number from your iPhone’s blocked list, it might still go to voicemail if the block synced via iCloud to other devices (like iPad or Mac). To fully unblock: unblock calls iphone
Many users unblock on iPhone but the caller still can’t get through because a secondary device (e.g., Wi-Fi-only iPad) still has the block active via iCloud sync. After unblocking, ask the caller to send an
Cons: