How to unblock spam calls on iPhone

 If you’ve previously blocked spam or unknown calls on your iPhone and want to start receiving them again — for instance, if a real contact was blocked by mistake — here’s how to unblock them easily.

1. Unblock Numbers from iPhone Settings

  1. Go to Settings → Phone → Blocked Contacts

  2. Find the number you want to unblock

  3. Swipe left on it → Tap Unblock

This instantly allows calls and messages from that number again.

2. Turn Off Silence Unknown Callers

If your iPhone is automatically silencing unknown numbers:

  1. Go to Settings → Phone → Silence Unknown Callers

  2. Toggle it Off

This lets all calls — including those not in your contacts — come through.

3. Disable Carrier Spam Blocking (if active)

For Verizon users:

  • Dial *632 to turn off spam blocking

  • For AT&T: Go to the Call Protect app → disable blocking

  • For T-Mobile: Use the Scam Shield app → turn off blocking

OnePlus Tip: Unblock calls temporarily if you’re expecting important calls from businesses or new contacts — then re-enable spam protection after.

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