Unable to receive incoming calls after iOS 18.3 update on iPhone 16 Pro

I just finally got to a live human at Verizon. I don't know if this will solve it so she will monitor my phone for the next 3 days but she had to re-establish the connection to my phone. It was nothing I could do on my end as I went through all of Apple and Verizon's troubleshooting steps. She said that she reactivated my service on Verizon's end and at least for the last 10 minutes, it is working. No idea why the update screwed up the activation but if you have verizon, this may help you. In order to get a human from verizon, I did this:

Call Verizon: +1 (800) 922-0204

1. Put your pin code into the automated message
2. Say: “I’d like to speak to someone”
3. When the automated system says, “Got it. Can you give me a little more information?” Say, “No.”
4. You will hear: “No problem. Please wait till I transfer your call.”
5. Real human being will pick up ASAP- it will be customer service and they will transfer you to support. Tell them you need them to transfer you to a live human in support and not some automated menu.

I will update again if it reverts back. Still having other issues since the update but at least I appear to be getting calls again and having them log as "missed" or "all" calls.

That worked!!!! ‼️I shut my Wi-Fi off and the calls went through immediately! What the?! Uhhhhh now what?!

Hello~ Any help clicking on below?

If your call fails or you can’t receive calls on your iPhone - Apple Support

~Katana-San~

Update on this: I got to some high level tier engineer today through Apple - they believe it could be a bug. I would call and report this to Apple so they know it’s a bigger issue! I should have more of an update in a week after they analyze everything I provided. In the meantime - call!!

Yes! Thank you! That worked! ‼️

leaving my wifi off till they fix

wow 🤦🏻‍♂️

[Edited by Moderator]

Updated to iOS 18.3.1 when it came out. Now my mom and family call it goes straight to VM. Im on wifi due to getting 2 out of 4 bars on 5G while inside my house. If i go to a website and it says that they need to perform 2FA by texting me i will not get a call or cellular text while on wifi until i turn wifi off. I can get apple to apple texts sometimes.

i swear this is happening to “prod” us to upgrade to a newer iphone.

I have a month later update: I have talked with Apple on the phone 3 times on a top tier level. I provided them code that ran in the background of my phone and they saw the calls dropped, but the claimed it was a Verizon problem. Meanwhile, Verizon blames Apple and I haven’t heard back in over a month from them as well. The best part was my call dropped multiple times while on the phone with them of course. I’m also just about to give up on Apple as well and buy another phone because it’s impossible.

Scratch that. It works now if my phone has wifi off and is only on cellular. As soon as I turn wifi back on (I don't mean wifi- calling) it goes back to being an issue.

SAME

any updates??

I’m getting no where…

I have 2wifi calling on

my husband was calling me multiple times, he texted me and told me he was calling…I re-booted my phone and then the call came through.

Any update on this?

I even bought a brand new phone because Verizon and Apple thought it was a hardware issue in my 15 pro max. Nope. Opened up a brand new 16 pro max today and it’s dropping my calls even WORSE.

Me too. And even worse, the missed calls are NOT showing up as a missed calls. My brother and a friend have called several times in the last two days and I would never know it if they hadn't text me to let me know. I had my phone next to me each time and it never rang or logged the calls. I'm on an iphone 12 and just updated and it started with 18.3.1.

It actually took me 4 days and speaking with 12 different people (3 on the phone) for them to reiterate how bad it is. They have documented everything. We have reset my esims and connections so many times it’s unreal. I have an engineer coming out to my house in the next 2 days and they hope to figure out something then, but I don’t have my hopes up…not sure what the next steps will be since me even upgrading my phone just made the problem worse. I’ll update here if they figured anything out.

I’m going on day 4 of not hearing from Verizon. They told me they’d send out an engineer but I should’ve heard by now according to them. Calls and texts have been a mess today.

some comments above state to turn off wifi calling but I can only use wifi at home because I have no service so it’s not been fun.

iPhone XS. Really like the phone but can't make or receive calls since 18.3.1. And I tried all the resets and reboots and bla bla bla. Strange way to force me to upgrade. Perhaps I'll but an Android phone as an upgrade if this isn't fixed ASAP. Was considering iPhone 19 when that releases but this has me second guessing.

Me, too. I have children who need to get hold of me and if there's an emergency with my elderly mom. I missed a doctors call that they are now charging me $75 for because they couldn't get hold of me. This is ABSOLUTELY unacceptable

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