If they hang up, they hang up — but you should at least get through the call-block screening. How can you tell if someone blocked your number? It's always best to speak to the person in question directly, though. If, for example, you and your contact both use Facebook, you can use Messenger to try to reach out to them. You will also get this result when their phone battery is dead or their phone is turned off.
Therefore I must conclude that if someone has Do Not Disturb mode turned on, you'll still receive delivery notifications for your messages, but you will not if you've been blocked. Use a public phone. Mon Sep 17 20: Then tap the contact that you want to block.
Circumventing a Block Edit. Yes No.
Call the phone number again with a masked number. Not Helpful 1 Helpful 10. Sometimes a call will divert to voicemail even if the line is clear and your phone unblocked; calling again will confirm the call's ending. Think before you call. If the person has blocked your number, however, there's a good chance that there is history here — and that they will quickly identify you.
Great tactic to block spam calls on your smartphone. If it's an emergency and you legitimately need to reach or find someone: Method One of Two: You can't undo deleting a message. I was able to leave a message as I would with any unblocked call, but it appeared in a separate section of the voicemail on her iPhone; in the blocked calls section.