Are You Getting Call Failed Issue After iOS 16 Update? Here's The Fix

Aug 30, 2023 • Filed to: Mobile Repair Solutions • Proven solutions


Any one of us has faced the call failed iPhone issue at one point in our lives. It can be due to any number of factors, and the single most common factor is the loss of connectivity between the iPhone and the network provider. But, if you recently updated to iOS 16 and notice that you can't make calls on your iPhone more than before, this means it is likely tied to iOS 16 update. This article deals with what to do when iPhone can't make calls after iOS 16 update.

iphone call failed

Part I: Common Ways To Fix iPhone Can't Make Or Receive Calls After iOS 16 Update

Here are a few simple fixes to try if your iPhone keeps saying call failed.

Fix 1: Restart The iPhone

Restarting fixes things, magically. That's because it purges unused code from active memory, reducing and even eliminating possible conflicts. Here's how to restart the iPhone:

Step 1: Go to Settings > General > Shut Down

shut down iphone

Step 2: Slide to shut off your iPhone

Step 3: Wait a few seconds till after the phone shuts off, then press the Side Button to restart.

Fix 2: Force Restart The iPhone

Sometimes, instead of graceful restarts, a force restart is required to resolve stubborn issues. iOS 16 is available for iPhone 8 and above, and here's how to force restart those devices:

force restart iphone 8 and above

Step 1: Press the Volume Up key, then the volume Down key, then press and hold the Side button until the iPhone restarts.

Fix 3: Turn Data Off And On

Voice over LTE or VoLTE calls on a 4G network rely on data. You can toggle data off and on to see if that resolves things. Here's how:

Step 1: Swipe down from the top right corner to launch Control Center

Step 2: Toggle the green cellular data symbol to turn data OFF.

toggle data off

Step 3: After a few seconds, toggle it back ON.

Fix 4: Turn Wi-Fi Off And On

If you have Wi-Fi Calling enabled on your iPhone, that relies on your Wi-Fi. Your iPhone is designed to switch between cellular and Wi-Fi seamlessly, but sometimes the switch does not happen as seamlessly, or not at all. Turning Wi-Fi off and on can fix the call failed iPhone issue after iOS 16 update.

Step 1: Swipe down from the top right corner to launch Control Center

Step 2: Toggle the blue Wi-Fi symbol to disconnect from Wi-Fi.

disconnect from wifi

Step 3: After a few seconds, toggle it back ON.

Fix 5: Reset Network Settings

When simpler fixes aren't working, you can reset network settings. This will reset your iPhone's network settings so that any conflict or corruption in settings that allow the phone to connect to the network is resolved. Here's how:

Step 1: Go to Settings > General > Transfer or Reset iPhone

reset network settings iphone

Step 2: Tap Reset

reset network settings iphone

Step 3: Tap Reset Network Settings and confirm.

Fix 6: Check The SIM

If your iPhone can't make calls still, it is time to take the SIM out and do some cleaning.

Step 1: Take the SIM out using the supplied SIM tool

Step 2: Inspect the SIM connectors for damage and signs of degradation. If damaged, visit your network provider's touch point and get it replaced. Else, clean using a moist cotton ball.

Step 3: Blow air into the SIM slot on the iPhone to dislodge any dust and dirt.

Step 4: Place the SIM back on the SIM tray and slide it into the slot.

Step 5: For good measure, restart the iPhone.

Part II: The Best (And Fastest) Way To Fix iPhone Can't Make Or Receive Calls After iOS 16 Update

Hey, we understand if you do not have time to perform the above attempts to fix and are looking for a solution that will work without having you waste your time trying to find the fix that will work. In that case, let us present you with a tool that you can use to fix the call failed iPhone issue after iOS 16 update quickly in a few simple steps.

Dr.Fone is a module-based tool that fixes almost everything that could go wrong with your devices. Phone locked? Use Phone Unlock. Want to take backups? Use Phone Backup. Got a new device? Use Phone Transfer to quickly transfer the contents of the old device to the new device. iPhone can't make calls due to call failed error? Use System Repair to fix the call failed iPhone error quickly. Here's how:

Step 1: Get Dr.Fone

Step 2: Launch the app

wondershare drfone interface

You will see the software is divided into modules. Each module helps you with specific issues. For example, Phone Backup helps you take full and selective backups easily. Phone Transfer helps you switch to a new device seamlessly. Data Eraser helps you erase junk as well as other data from your device for privacy. System Repair, the module we will discuss below, helps you repair iOS to fix issues such as the iPhone call failed issue you are facing.

Step 3: Click System Repair, and you will see two modes: Standard Mode and Advanced Mode. Standard Mode will reinstall/ repair iOS without deleting user data whereas Advanced Mode is used for more thorough repair and user data will be deleted. Select Standard Mode to start.

drfone system repair mode screen

Step 4: At the version screen that shows your model and firmware version, select your version and proceed:

drfone device system version screen

Step 5: System firmware will get downloaded and verified with Apple, after which you will get this screen:

repair ios without deleting user data

Step 6: Click Fix Now.

drfone system repair process complete

After successful repair, the iPhone will restart, and your call failed issue will be resolved.

Part III: Bonus Tip: Backup Your iPhone Before Updating To iOS 16

Backups should never be an option in today's age when we have our whole lives on these little devices we carry in our pockets all the time. Dr.Fone helps you with this aspect of your digital life equally well with its Phone Backup module.

Dr.Fone - Phone Backup module helps you take backups in easy steps. You can take whole device backups as well as choose what you want to backup.

iOS 16 is in the beta stage right now, and, as always, beta software is buggy. You never know what sort of bugs you will face specifically; this is why backing up your device before updating to iOS 16 becomes even more important. Read more about how to use Dr.Fone - Phone Backup to take a backup of your device before updating to iOS 16:


Updating to beta operating systems can cause unexpected issues on phones, such as iPhone call failed repeatedly. If your iPhone can't make calls after iOS 16 update, you know this has to do with the update. Sometimes, you can try a few small fixes such as restarting the devices, resetting the network settings, pulling out and cleaning the SIM, etc. to resolve the issues. Sometimes, the issues persist, and require a more thorough system repair. For you to do that quickly with confidence, there is a third-party tool called Wondershare Dr.Fone System Repair (iOS) that will help you fix the call failed iPhone issue quickly in a few simple steps.

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