iPhone 12 Pro - Call Failed - Verizon

I bought two IPhone 12s (they were identical, both 256 GB) at the same time. With one of them, there hasn't been a single issue. With mine, however, I had the "Call Failed" issue repeatedly. I took the phone to the Verizon store (at the suggestion of Verizon technical support) and the SIM card was replaced. The issue persisted.

I took the phone back to the store and got a new IPhone 12. The issue continues. The other IPhone12 we purchased is being used in the same city, but on another side of town. So is this a location issue that has to do with Verizon towers?

Also, I have had issues with my text messages not producing a notification sound on every occurrence. And I sometimes when I need to click sometimes in the far corners of the phone, I have to repeatedly click the icon to get it to work. These are basic things that should not be issues.

Dear Apple, all of these things are extremely frustrating. I have been an IPhone user for about a decade. My wife bought a new Motorola Edge Plus and hasn't had a single issue.

I have iPhone12pro since beginning of Nov and had no issues. Purchased at BestBuy and have Verizon. For 2 weeks, I’ve started getting ‘calling mobile’ and not connecting or and ‘call failed‘ when calling out. Inbound callers either go directly to voicemail or get nothing. Apple’s issue? Verizon’s issue?

I have read all eight pages. Several people said they had the same problems and were on ATT. The Verizon tech said it was a known issue across all platforms. Also, some people got a new SIM without a successful resolution. So I don’t think we’re done.

This problem happens with Wifi Assist on or off. I have tested that.

if I am on a call using wifi calling and turn off wifi (simulating a drop in WiFi connection, it does switch to cell service appropriately).

it is sporadic when the calls say call failed or not.

Do you happen to remember if your phone came with iOS 14 or 14.0.1.

I don't recall in my situation. I just set up my new phone from backup. After it was done, the current OS on it was 14.0.1 and I was already getting "Call Failed". This was way before the 14.1 update.

I agree. Verizon replaced my first phone. That is why I have had two phones. I have an open case with Apple. They gave me a few new things to try. Neither has worked.

I have a call set for Friday morning. They download log files form my phone which they said will be given to the Engineeering people to see if they can figure it out. As to when? No clue. I need Wifi calling to work. It might be time for a new brand.

Are you within 14 days of your purchase? If yes, return the iPhone and get your money back, switch to T-Mobile or AT&T and get a new iPhone. However what WiFi are you connected to when you can't make calls?

I wondering if you have updated your software since you got your phone. It seems like most everyone phone works fine until they upgrade it. A few people have said the problem is in the process of upgrading.

I wonder why it is not happening with everyone phone. My wife has a 12proMax.

she has never had a problem. I have a 12Pro. I can not make calls on Wifi calling without them dropping after 3-5 min on the call. Every time. If anything I think it is software. And maybe it is the update process when one updates the IOS. Not the software itself.

I only had a problem when using WIFI calling. I never had a problem using Cellar. I was always able to make and get calls while on Wifi calling. At about the 3-5 min mark. My phone would drop the call.

since I updated to 14.4 it seems to work. Still testing.

Even after turning the ‘WiFi calling’ Off, the problem returned albeit after a longer period as compared to with WiFi calling On. So, I have currently kept it On and did a network settings reset. I know it will come back. There has to be a real fix from Apple side. Not done Apple.

I”m sure Apple is working with Verizon to try to determine what the issue is. I have many friends using the 12 series with T-Mobile and AT&T (including myself) and they have had none of these issues. One friend is on AT&T with no issues but his daughter-in-law has an 12 on Verizon and is having the problem.

I have always believed that the problem was when the phone tries to go from Wifi to Cellular. When I am on Wifi calling and move further away from my router the problems starts. I believe that at some point the phone see's a stronger single from cellular and attempts to switch. I have strong Wifi throughout my house. But as I move away from the router, the speed and strength does change. That is when I see the problem.

I think you’re on the right track. I think there’s a deeper problem, though, because even when I stay in the same place, I still have sporadic issues making calls. In the middle of a wifi calling call, I can turn off wifi and it switches to cellular seamlessly. So my sense is the phone doesn’t know how to decide when to do that because if it switches when you don’t have adequate signal, then you’ll drop the call.

myself and all the people I’ve referred to are updated. I don’t see a thread like this one for AT&T. It isn’t a democracy your vote doesn’t count. But it could be a software issue with Verizon’s Carrier Settings file.