iPhone VoIP Calls failing after iOS 18.3/17.7 Update- Here’s the Fix

Apparently, we have encountered the problem in iPhone 12 Pro Max, that users are not able to make VoIP calls on WhatsApp, Facebook, Skype, and Viber applications. They also tried to make calls on iPhone with the same latest version, and you may surprise that it is working perfectly on my iPhone 12 Pro Max. So, the conclusion is that your iPhone XR needs some cure to work thoroughly.

After deeply analyzing the major problem we will recommend you to follow the steps and try to troubleshoot the issue and enjoy VoIP calls on any application without interruption.

Fix iPhone VoIP Calls Not working

When you follow these solutions, you must try to make calls over VoIP after each tip.

Fix #1- Try hard restarting the device

When you force restart the device all the applications will get closed, and system programs get shuts for seconds, and again it will work as before.

Step #1: First of all, just press the Volume Up key and then release.

Step #2: Then press the Volume Down key and release.

Step #3: Now you have to long-press the Power button until the Apple logo appears on display.

Fix #2- Delete and re-install the VoIP Apps

Once you delete these applications, it will remove all your Document and Data which is stored on the iPhone.

Step #1: Press and hold the particular application which you want to delete.

Step #2: You will see a small cross on the top-right corner, tap on it and give final confirmation to uninstall it.

Thereafter you have to download the applications from the App Store.

Get Here: Free Tips to Fix iPhone Call failed Error

Fix #3- Reset all settings [#1 Solution to fix iPhone VOIP Problems]

Sometimes certain settings are affected by bugs when you move to a new device with all the settings of the old device. For that, you have to Reset All Settings in iOS and the device will follow the default settings of your device.3

Steps to Reset All Settings for iOS 15 and later Version Users

Go to the “Settings” app > Tap “General” > Find and open tap “Transfer or Reset iPhone” > Tap “Reset” > Lastly tap on “Reset All Settings” > For security reasons, you will be asked to enter the iPhone Passcode. >Tap Confirm Reset All Settings. > After that iPhone will reboot.

Steps to Reset All Settings for iOS 14 and Eariler Version Users

  • Step 1: Go to Settings App.
  • Step 2: Tap on General and then Reset.
  • Step 3: There, Tap Reset All Settings.
  • Step 4: Finally tap on confirmation to complete the process Reset All Setting successfully.

Still, the problem of the iPhone VOIP call not working and do you have other tricks apart from given above please let me know in the comments. We’d like to hear from you.

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Karly Wood

Karly Wood is a journalist based in Ohio who specializes in covering Apple and technology trends. With a varied experience in reporting on public safety, government, and education, her insights bridge multiple disciplines, providing readers with a well-rounded perspective on today's technological advancements. If you need to contact me, you can reach me at [email protected] or through (Facebook)

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