How to Fix Call Failed iPhone Issues Quickly

If you're experiencing call failed errors on your iPhone, you're not alone. These issues can stem from various factors such as network problems, software glitches, or incorrect settings. Here’s a guide to help you troubleshoot and resolve this issue.​

How to Fix iPhone Call Failed Errors​

1. Restart Your iPhone​

• Go to Settings: Open the Settings app on your iPhone.
• Navigate to General: Tap on the General option.
• Shut Down Your iPhone: Scroll down and tap Shut Down.

• Slide to Power Off: Slide the power off slider to the right.
• Restart Your iPhone: Wait a few seconds, then press and hold the Side Button until the Apple logo appears.

Restarting your iPhone helps clear out temporary glitches that could be causing call failures.

2. Force Restart Your iPhone​

• Press Volume Up: Quickly press and release the Volume Up button.
• Press Volume Down: Quickly press and release the Volume Down button.
• Hold the Side Button: Press and hold the Side Button until the Apple logo appears.

A force restart helps resolve more stubborn issues that a regular restart might not fix.

3. Toggle Airplane Mode​

• Open Control Center: Swipe down from the top right corner of the screen (or swipe up from the bottom on older models).
• Turn on Airplane Mode: Tap the Airplane Mode icon to turn it on.
• Wait a Few Seconds: Leave it on for about 10 seconds.
• Turn off Airplane Mode: Tap the Airplane Mode icon again to turn it off.

Toggling Airplane Mode refreshes your network connections, which can help resolve call issues.

4. Check Cellular Settings​

• Go to Settings: Open the Settings app.
• Select Cellular: Tap on Cellular.
• Check Cellular Data: Make sure Cellular Data is turned on.
• Check LTE and Roaming: Go to Cellular Data Options and ensure LTE is enabled and Data Roaming is turned on if you're in a different country.

Checking your cellular settings ensures that your iPhone is correctly configured to make and receive calls.

5. Update Carrier Settings​

• Connect to a Wi-Fi Network: Ensure your iPhone is connected to a stable Wi-Fi network.
• Go to Settings: Open the Settings app.
• Navigate to General: Tap on General.
• Select About: Tap on About.
• Follow Onscreen Instructions: If there’s a carrier settings update available, you’ll see a prompt. Follow the instructions to update.

Updating carrier settings can resolve compatibility issues between your iPhone and your carrier's network.

6. Reset Network Settings​

• Go to Settings: Open the Settings app.
• Select General: Tap on General.
• Transfer or Reset iPhone: Scroll down and tap Transfer or Reset iPhone.
• Reset Network Settings: Tap Reset, then select Reset Network Settings and confirm.

Resetting your network settings can resolve conflicts or corrupt settings causing call failures.

7. Remove and Reinsert the SIM Card​

• Turn Off Your iPhone: Press and hold the Side Button, then slide to power off.
• Remove SIM Card: Use the SIM ejector tool to remove the SIM card.
• Inspect the SIM: Check for any damage or dirt. Clean gently with a soft, dry cloth.
• Reinsert SIM Card: Place the SIM card back into the SIM tray and insert it into the iPhone.
• Turn On Your iPhone: Press and hold the Side Button until the Apple logo appears.

Reinserting your SIM card ensures that it is properly seated and free of debris, which can resolve call issues.

8. Check for Software Updates​

• Go to Settings: Open the Settings app.
• Select General: Tap on General.
• Software Update: Tap on Software Update.
• Install Updates: If an update is available, download and install it.

Updating to the latest iOS version can fix bugs causing call failures.

9. Disable Call Forwarding and Silence Unknown Callers​

• Go to Settings: Open the Settings app.
• Select Phone: Tap on Phone.
• Check Call Forwarding: Ensure Call Forwarding is turned off.
• Silence Unknown Callers: Make sure Silence Unknown Callers is turned off.

Disabling these features ensures that incoming calls are not blocked or diverted.

10. Dial *#31#​

• Open the Phone App: Open the dialer on your iPhone.
• Dial *#31#: Enter #31# and press the call button.

This command disables any outgoing call anonymity settings that might be causing call failures.

11. Contact Your Carrier​

• Call Customer Support: Use another phone to call your carrier’s customer service.
• Check Account Status: Ensure there are no billing issues or service outages affecting your account.
• Report the Issue: Describe the call failed issue to get further assistance.

Contacting your carrier can help identify any account-specific issues causing call failures.

12. Factory Reset (Last Resort)​

• Backup Your iPhone: Use iCloud or iTunes to back up your data.
• Go to Settings: Open the Settings app.
• Select General: Tap on General.
• Transfer or Reset iPhone: Scroll down and tap Transfer or Reset iPhone.
• Erase All Content and Settings: Tap Erase All Content and Settings and confirm.

Factory resetting your iPhone will erase all data and settings, potentially fixing persistent call failures.

By following these detailed instructions, you should be able to resolve most call failed errors on your iPhone.