Their device will continue ringing (on their end) until the blocked person eventually hangs up the call. You won't be notified in any way and (unlike with a standard voice call) the blocked person will not have an option to leave a voicemail.
One method you can use on any type of phone is by calling the person you suspect has blocked you. While typically you can expect to hear anywhere from three to 12 rings when you call someone before going to voicemail, a blocked number will only ring once and then go straight to voicemail, according to Tom'sGuide.com.
Note that you have been blocked by the recipient iPhone, that recipient iPhone will not ring or make any notification or sound that you have called, nor sent them a message, nor left a voicemail. From the end that is doing the blocking, their iPhone stays silent and undisturbed by an inbound blocked call.
Count the rings before voicemail
It's a normal call when you call a person and hear the usual number of rings before getting voicemail. But if the person has blocked you, here's the big indicator. You only hear a single ring before being diverted to voicemail.
If you're blocked, you would only hear a single ring before being diverted to voicemail. An unusual ring pattern doesn't necessarily mean your number is blocked. It may just mean the person is talking to someone else at the same time you're calling, has the phone off or sent the call directly to voicemail.
Send them an iMessage
A red flag that you've been blocked is when you don't see the delivery status or the read receipt at all. The message you just sent will still be in a blue bubble, but it will have no delivery status below it – not even a "Not Delivered."
Call your contact back with a masked number.
If the call goes through like usual--e.g., five or more rings--then your contact has blocked your number. If the call still stops after a ring or less and diverts to voicemail, your contact's phone is dead.
A green bubble could also indicate that someone blocked you, especially when the bubbles have always been blue. When blocking occurs, iMessage sends your text, but the recipient never receives it. Your old messages remain blue, but the latest texts you send after they've blocked you turn green.
If an Android user has blocked you, Lavelle says, “your text messages will go through as usual; they just won't be delivered to the Android user.” It's the same as an iPhone, but without the “delivered” notification (or lack thereof) to clue you in.
once you have blocked someone you can not call or text them and you can not receive any messages or calls from them either. you will have to unblock them to contact them. once you have blocked someone you can not call or text them and you can not receive any messages or calls from them either.
The blocked person also does not receive any notification that they're blocked. However, many iPhone users may be able to deduce that you've blocked them. This is because of the iMessage text “status” feature on iPhones.
If your iPhone messages are green, it means they're being sent as SMS texts rather than iMessages. You'll always see green when texting Android users, or when you're not connected to the internet. If all of your iPhone messages are green, you should make sure iMessage is turned on in Settings.
When you block a phone number or contact, they can still leave a voicemail, but you won't get a notification. Messages that are sent or received won't be delivered. Also, the contact won't get a notification that the call or message was blocked.
Blocked FaceTime calls ring forever
Nothing happens on your end, and you won't know that they're calling. It'll go on like this until the blocked caller gives up and stops trying to call.
When you call a number that has blocked yours, you may hear one or half a ring or no rings at all and then the call will go to voicemail. If it goes straight to voicemail, their phone may also be off or out of range, or they may have temporarily turned on Do Not Disturb mode to work, drive, or sleep.
Try sending a text message
However, if a person has blocked you, you won't see either notification. Instead, there will just be a blank space beneath your text. It's worth noting that being blocked is not the only reason why you might not see a notification.
Important: The person you block won't receive a notification that they've been blocked, and you can still call, message, or email a blocked contact without unblocking them.
You can also use *82 to unblock your number in case your call gets rejected temporarily. Some providers and users will automatically block private numbers, so using this code will help you bypass this filter. Blocking your number can go a long way in stopping annoying robocalls.