Phone calls to iPhone go straight to voicemail

I had the same problem , except no incoming calls were getting through, all sending directly to Voicemail. After talking to my carrier for over half an hour and Apple Chat Line for about as long, it still was not receiving calls. Everything else worked, iMessage, FaceTime, outgoing calls, even voicemail once I got it set up. At the top left of the phone I had plenty of bars and the name of the carrier next to which was LTE.

I got it working myself! I was going through EVERY THING in my settings directory for the hundredth time, just about to give up and see if I could send the phone back. When I found this that got it working: in SETTINGS go to CELLULAR/CELLULAR DATA OPTIONS/VOICE & DATA. I switched it from LTE to 3G. Now it receives calls, no problem. Apparently I don’t have LTE service. Maybe you don’t either.

FIRST: Are the missed calls in Phone/Recents on the phone? If they are not the problem is in the network, because the calls aren’t getting to your phone. Contact your carrier. If they are in Recents here’s what to check:

• Check the MUTE switch on the left side of the phone, above the volume buttons. It should be towards the screen
• Check the volume setting. With the Home screen displayed, press the VOLUME UP button on the left side of the phone. It’s above the VOLUME DOWN button.
• Go to Settings/Do not Disturb. Turn it off if it is on. Also turn off Scheduled. With both off none of the other switches there matter.
• Go to Settings/Phone. There’s a switch for Silence Unknown Callers. If it is on any calls from numbers not in your contacts will go directly to voicemail.
• Also in Settings/Phone: Make sure Call Forwarding is off.
• Go to Settings/Sounds & Haptics. Make sure there is a sound assigned to Ringtone.
• check with your carrier that they don’t have a local outage, and that you didn’t have any settings that would have immediately invoked voicemail
• check up on them at Down Detector - outages

I had exactly the same issue on an iPhone 11Pro running iOS 13.5.1. I tried all the suggestions found in this thread. No ringy-dingy.

Finally, I powered my phone down and let it "be" for a minute or so. I powered it back on and - viola ! Ringy-dingy.

Working like a charm now.

I bought my I phone 11 today- all calls go straight to voice mail help

Calls will go to voicemail if your phone can’t be located by the carrier’s network, or if the signal strength is too weak for a reliable connection. Do you see the calls in your Recents list in the phone app? If not, the calls are not reaching your phone. With some carriers that don’t support simultaneous voice and data if you are using cellular data actively the call can’t go to the phone. There are fewer and fewer carriers with this problem; it is almost exclusively CDMA carriers that do not also support LTE. In the US, if that is where you are, those are mostly rural carriers that are partners of Verizon or Sprint. And sometimes the local towers are overloaded (especially during this pandemic) and there are no open channels to route the call.

If it happens to all calls you may have call forwarding enabled, but from you description it is only some calls, so that probably is not the issue.

Go to Settings/Phone and turn off Silence Unknown Callers.

Hi Lawrence! I´m puzzled by your response to the OP to " turn off Silence Unknown Callers", and his response to you! The OP states he's running iOS 11, and as far as I know "Silence Unknown Callers" is a feature first introduced with iOS 13. My iPhone X (12.4.1) has no such feature...I´d be using it if it did! I know how to block specific calls, but that's not the same. Am I misunderstanding something here, or could "Silence Unknown Callers" be a feature only available with iPhones sold in the USA? Thanks! Ian.

I’ve tried this. I’ve tried another’s persons response of changing cellular to 3G from LTE. I just got my new iPhone today. Not on Do not disturb. I get text messages but all my calls go to voicemail. I can’t even see my voice mail box. What do I do??

I had the same problem of incoming calls going directly to voice mail. I didn't have "silence unknown callers" or "Do Not Disturb" on. I did a forced reboot, and that seemed to solve the problem.

(iPhone 6s, iOS v. 13)

Mine too! Do not disturb isn’t on, I did the carrier update, I did the iPhone update, the contacts calling are in my address book and I can’t figure out how to fix it!

Phone goes straight to voicemail on unknown callers. Do not call is not active......Allow calls from everyone is active. This problem just started about 4 days ago.

I made a guess that the history was not up to date, and from the response to my post it appears I was right. It is a feature of iOS 13, and the OP’s phone has it as a setting.