iOS 17.0.3 Silence Unknown Callers silences all callers not in contacts list

My prior iPhone was the 13 Pro. I was running iOS 17.0.1 with "silence unknown callers" enabled.

It would stop calls that normally appear on the caller ID as "unknown" and "blocked". I had no issues receiving calls from numbers not in my contacts list. So a restaurant I made a reservation at could reach me despite not being in my contacts. Numbers I've had zero contact with were able to call me and ring my phone, without issue.


My 15 Pro arrived and I mirror it from the 13 pro so this setting carried over but ever since, my phone hardly rings. Even when Apple Technical Support was trying to call me, it was silenced and sent to VM. This is in contrast to a month earlier when Apple Technical Support was able to ring through on the 13 Pro, with that same setting enabled.


I turned it off so Apple Technical Support could call me tonight but that agent insists the whole point of the silence unknown callers feature is to silence any call originating from a number not in my contacts. This description contradicts how my 13 Pro behaved.


As a test, I'm going to visit my carrier and see if they can put a sim in my 13 Pro so I can call it from a number not in the contact list to see that it does in fact ring through. I looked at the call history (that predates the 15 Pro) and I received and answered calls from numbers not in my contacts. If that feature silences calls originating from unrecognized numbers, how did I answer them? I watched how the 15 Pro responds to incoming calls with that feature on, it silences them and shunts them to VM many times faster than I could even hope to answer it, even if I was waiting in anticipation.


My question is, how is this feature supposed to work?

iPhone 15 Pro

Posted on Oct 5, 2023 8:11 PM

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Posted on Oct 5, 2023 8:18 PM

Silence Unknown Callers:


With iOS 13 and later, you can turn on Silence Unknown Callers to avoid getting calls from people you don’t know. This blocks phone numbers that you've never been in contact with and don’t have saved in your contacts list. If you’ve previously texted with someone using their phone number or if a person has shared their phone number with you in an email, a phone call from that number will go through.


Incoming calls will come through from people that are saved in your contacts list, recent calls list, and from Siri Suggestions to let you know who’s calling based on phone numbers included in your emails or text messages.

If an emergency call is placed, Silence Unknown Callers will be temporarily disabled for the next 24 hours to allow for your iPhone to be reached.


More information on the above here 👉 Detect and block spam phone calls - Apple Support


Axel F.

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7 replies
Question marked as Top-ranking reply

Oct 5, 2023 8:18 PM in response to Zenica

Silence Unknown Callers:


With iOS 13 and later, you can turn on Silence Unknown Callers to avoid getting calls from people you don’t know. This blocks phone numbers that you've never been in contact with and don’t have saved in your contacts list. If you’ve previously texted with someone using their phone number or if a person has shared their phone number with you in an email, a phone call from that number will go through.


Incoming calls will come through from people that are saved in your contacts list, recent calls list, and from Siri Suggestions to let you know who’s calling based on phone numbers included in your emails or text messages.

If an emergency call is placed, Silence Unknown Callers will be temporarily disabled for the next 24 hours to allow for your iPhone to be reached.


More information on the above here 👉 Detect and block spam phone calls - Apple Support


Axel F.

Oct 5, 2023 8:20 PM in response to lobsterghost1

That's how Apple stated it should work and they had no explanation for why the 13 Pro passed unrecognized callers through. I gave them access to the 15 Pro and scrolled through the call history, he could see calls answered from numbers not in my contacts list. The only variable he couldn't be certain of was whether or not I had the feature enabled at the time of those calls. I know it was because I don't usually mess with the settings once I have them where I want them. I don't think I ever went back into that area of settings after I turned it on.


So it would seem the 13 Pro is the one misbehaving. Odd since it is an Applecare replacement that was recovered from the original 13 Pro (which is why Apple called me about a month ago).

Nov 28, 2023 12:41 PM in response to Zenica

I myself have not experienced this particular issue. I do have that feature enabled on my phone and it seems to be working just as has been suggested. The only thing I can think of is I have noticed on my phone when there’s an update some features will have turned on and off by themselves obviously because of the update. After an update, sometimes I see that settings have changed all by themselves (perhaps, resetting themselves back to a default setting?). Agents who insists how something should be? Well, I think we all know with cell phones anything that can happen will happen. Glitches glitches glitches.



Nov 10, 2023 1:59 PM in response to Zenica

I have this same problem. With the new ios17.3 (?) update, silence unknown callers does not silence unknown callers. I am getting 5+ calls per day from phone numbers I do not know and have had no dealings with. I assume they are spam because none of them choose to leave a

message.


I don’t know if a rule has changed from “numbers not in the contact list” to “callers who have told their carrier not to pass along their caller id “ because all of a sudden after this update it seems like any number under the sun can ring my phone despite the fact that I have silence unknown callers toggled on . And… they do, all day long.

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iOS 17.0.3 Silence Unknown Callers silences all callers not in contacts list

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