Call Failed on iPhone after iOS 17.1.1 Update? Here’s Fix

🗓️ October 17, 2023 By ✍️ Jaysukh patel

Are you facing that your iPhone call failed After iOS 17 update or iPhone call failed after answering? Let’s Follow this article guide step-by-step even if your iPhone FaceTime call failed.

Are you having trouble with your iPhone constantly saying call failed? Hmm, we know that you are feeling lousy experiences while making or receiving a call from your friends, family members, and those people who are in contact with even good signal strength. Don’t worry my friend. We know that the iPhone call failed repeatedly and cut the call off is a common problem. Here I’ll give you a decent suggestion to fix it quickly.

Generally, This problem arrives on the iOS device due to outdated software running on the iOS device. Or Some internal software error crashing or interrupting connectivity issues while making a call. And the next your iPhone keeps saying call failed.

Hence, I used a variety of tips to solve the call failed and system failure bug. Also, are you looking for an iPhone voicemail call failed? Get the detailed tutorial on Setup Voicemail to fix.

Get Rid of iPhone Call Failed

Fix #1. Dial *#31#

You guys, open the Phone app, tap on Keypad, and then dial *#31#. Cause it is one, the most straightforward point to make and receive a call without any interruption.

Note: Sprint users especially fix this issue by dialing “##873283#” and tap o the call button. Your Handset will search your profile and install a new Profile update on the device.

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Also, Re-Insert SIM using SIM eject tools comes with your iPhone box inside.

Open Phone Tap Keypad And Cll Are Dismiss On iPhone

Fix #2. Airplane Mode [Enable & Disable]

Step 1: Launch the Settings app on iPhone.
Step 2: Turn On Airplane Mode.

 Turn on AirPlane Mode on iPhone

An alternative, this is a vital clue that can make a call again as if you used it in the past iOS ecosystem iOS 14. Therefore, turn on Airplane Mode in the latest iOS and then turn the toggle off. Many users say this solution is very very useful. To do that open up by swiping up the menu, you can also open via Settings App to enable/ disable airplane mode on your iPhone.

Fix #3. Disable VPN

VPN app installed on your iPhone loses the Device Privacy and Security. That’s against the Apple’s Privacy & Policy. So, iPhone and iPad users have to use VPN for short time or Should be turned off after use.

Disable VPN and Try: Go to your iPhone settings and Disable VPN, Settings > VPN [Turn off VPN Toggle], if the VPN can’t turn off the toggle then Remove the VPN from iPhone settings.

Step 1: Launch the Settings app on your iPhone.
Step 2: Scroll the General Tab.

Launch The Settings Tap General On iPhone

Step 3: Tap scroll the drop down VPN & Device Management.
Step 4: Click VPN. and then Device VPN under Opera VPN (i) click on iPhone

Click VPN & Device Management Tap On VPN Then (i) Icon On iPhone

Step 5: Now select Delete VPN.
Step 6: Finally , then Delete on iPhone.

Delete VPN on iPhone - Profile

Fix #4. Force Quit Unnecessary Apps

Sometimes unnecessary recently used apps create clutter in phone service. Hence, you have to force close unnecessary Apps via the double click home button. Get more methods to force quite an App in iOS.

Fix #5. Adjust Date & Time

Check out your iPhone Date & Time. Cause many users have trouble to change timezone automatically while they are abroad. Therefore, I’m suggesting to you,

  • Go to Settings
  • Tap General
  • Click on Date & time
  • Now turn the toggle Set automatically off and tap Time Zone to set manually.
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Click date & time toggle ON:OFF set automatically on iphone

In most cases, this workaround becomes useful.

Fix #6. Caller ID

Tap on Phone app then Show my Caller ID on iPhone iOS 11 later

Caller ID setting is a function of the side of a carrier service provider like in the USA –at& t, T-mobile, Verizon, Sprint, etc. by the way, you can appear Caller ID option into Phone app settings.

  • Go to Settings App,
  • tap on Phone
  • scroll down the screen to turn Caller ID On.

Fix #7. Enable Wi-Fi Calling

Most of the time you might get Call Failed error because of Poor Connectivity or Network Down area. So Wi-Fi Calling will help you and Auto Switch to Call on WiFi. This is the only prevention technique that network providers providing most people with a Basic Cellular plan. If you the popup like below, Then Tap on Wi-Fi Calling Settings > And Enable Wi-Fi Calling on This iPhone toggle to Green.

Step 1: Launch the Settings app on iPhone.
Step 2: Tap on Phone.

Phone settings on iPhone

Step 3: Under CALLS Tap Wi-Fi Calling.
Step 4: Disable toggle off Wi-Fi Calling on This iPhone.
Step 5: Choose Enable turn on Wi-Fi Calling on This iPhone.

Enable WiFi Calling on iPhone

Fix #8. Reboot or Hard Reset

Now you can reboot your iPhone without the power button. This way in most cases solves the iPhone call Failed problem.

Press and Hold Below buttons until you see the Apple logo on Screen,

  • iPhone 6 and Below: Sleep/Wake/Power Button + Home button
  • iPhone 7/7: Sleep/Wake + Volume Down button
  • Force Reboot Tip for iPhone 13 [Pro, Max], 11 Pro Max, XS Max, iPhone XS, iPhone XR, iPhone X, iPhone 8 Plus, and iPhone 8 Users:
    1: Press and Quickly Release Volume Up button,
    2: Press and Quickly Release Volume Down Button,
    3: Press and Hold the Side Button until you see the Apple logo on Screen. To Start the iPhone, Again press the Side button until the startup apple logo on the screen.
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Now turn on iPhone, Press Sleep/Wake, or Side button once.

iPhone eSIM call failed

E-sim users can reset their sim, by deleting all e-sim on devices. before that, you should prepare yourself to re-insert e-sim on your device. For instance, you should have a nearby cell provider store that can proceed to scan barcodes to insert E-Sim. Otherwise, what happens? without preplanning you will lose your E-sim, and so that you can’t make call because of you will not have a cell tower signal due to erased E-sim.

Go to Settings – Scroll to General – scroll to Transfer or Reset iPhone – hit Reset – Click Delete All eSims – Enter your Passcode (phone unlocking code) – again enter your screen time passcode (if ask- this will differ than Phone unlock PIN) – Click on Delete All eSIMs to confirm.

What happens if I delete all eSims?

These SIMs will be deleted from your iPhone. Your cellular plans will not be canceled. Contact your carrier to get a new eSIM or to cancel your plan.

Fix #9. Reset Network Settings

Go to Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings > Reset Network Settings with info “This will delete all network settings,
returning them to factory defaults”


Reset your iPhone network settings to make the phone call line error-free. If you’re a newbie, then get here how to reset network settings on iOS.

Fix #10. Reset your iPhone to Factory Setting

how to factory reset iPhone 6 plus on iOS 8 and iOS 9

If none of the above workarounds doesn’t work in your case, then you must be reset your iPhone to factory settings.

We have suggested above mentioned all the possible troubleshooting. Now let me know your feedback that what was helpful to resolve iPhone call failed iOS in the comments.

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Jaysukh Patel
Jaysukh Patel

Jaysukh Patel is the founder of howtoisolve. Also self Professional Developer, Techno lover mainly for iPhone, iPad, iPod Touch and iOS, Jaysukh is one of responsible person in his family. Contact On: [OR]