Correct. Unblocking only allows future messages and calls. Any voicemails or texts sent during the blocked period are permanently lost. Final Tip: Check Your Focus Modes Sometimes users think they have blocked someone, but the person is actually just muted by a Focus Mode (like Do Not Disturb or Sleep). Go to Settings > Focus and ensure "Allow Calls From" includes "Everyone" or your specific contact. Need to re-block someone? Just follow the same steps, but look for the red "Block this Caller" button instead.

No. Unblocking simply removes the restriction. Their contact card (if you saved it) remains intact.

Have you ever had trouble unblocking a number? Let me know in the comments below

How to Unblock a Caller on iPhone: A Step-by-Step Guide