The ‘Phone App’ is one of the integral apps on your iPhone or any mobile. This lets you make calls, see who called you, whose call you missed, access Voicemail, and more. It can be catastrophic when this essential application freezes, gets stuck, does not launch, misbehaves, or fails to make calls. Thankfully, it is not a long-lasting issue and you can easily fix the Phone app not working issue on iPhone by following the solutions below.
Why is my Phone App on iPhone Not Working?
Making and receiving calls is the primary function, and usually, there are no problems with it. However, at rare times, due to iOS bugs, lack of carrier support, and other network problems, Phone app may stop placing calls on your iPhone.
Some time due to misbehavior of other apps, the Phone app may get affected. In rare situations, if you have not restarted your iPhone for long, you may have trouble using several iPhone settings and apps (including this one).
Now that you have a rough idea about why this problem happens let us look at easy solutions to fix the issue.
What to Do If Phone App Not Working on iPhone?
Force Quit the Phone app and Relaunch
Enable and Disable Airplane Mode
Enable Cellular Data
Restart Your iPhone
Ensure Correct Roaming Settings
Check the iPhone Date and Time
Double-check You Have No Outstanding Bill
Take Out the SIM Card From iPhone and Reinsert
Check for Carrier Updates
Update Your iPhone
Reset iPhone Network Settings
1. Force Quit the Phone app and Relaunch
On iPhone with Face ID, swipe up from the bottom of the screen and hold. On iPhone with a Home button in the front, quickly double-press it. You will see all the open apps.
Drag the Phone app all the way up to force quit it.
After 5-10 seconds, tap on the Phone app icon again to launch it. You should be able to use it.
2. Enable and Disable Airplane Mode
You can do this from the Control Center, which is accessed by swiping down from the top right corner on iPhones with Face ID. On models with the Home button, swipe up from the bottom of the screen. Next, tap on the Airplane icon. After 15-30 seconds, tap on the same icon to disable this mode.
Alternatively, you can do the same by launching the Settings app and tap on the switch for Airplane Mode. After a few seconds, turn the same switch off.
3. Enable Cellular Data
In some cases, when you are unable to make or receive calls, enabling mobile data helps. For this, bring up the Control Center and tap on the antenna icon (next to the Airplane icon).
You may also open the Settings app, tap on Cellular, and then toggle on Cellular Data. In case you have trouble using mobile data on your iPhone, make sure to see how to fix this problem.
4. Restart Your iPhone
This is a highly effective solution to fix multiple issues, including the phone app’s freezing and non-responsiveness. You can use the physical buttons on your iPhone to switch it off and then back on.
You can do the same from the Settings app → General → Shut Down. Now, after a minute, use the button to turn on the device. Or, plug the phone into charging, and it will switch on automatically.
In case you are new to it, we have a separate guide that tells you how to restart your iPhone.
After the restart, I am pretty confident that the stuck and nonfunctional Phone app would start working like a charm again. In the rare case it doesn’t, learn how to force restart your iPhone.
5. Ensure Correct Roaming Settings
To prevent from incurring high charges while roaming, you may have this feature turned off. But in case you are facing trouble with the Phone app or are actually in a different state/country, you should enable the roaming toggle. This would ensure a smooth call and data connection.
Inside the iPhone Settings app, tap on Cellular → Cellular Data Options.
Turn on the switch for Data Roaming.
If you see this option: Tap on Voice & Data, and make sure the toggle for VoLTE is enabled.
6. Check the iPhone Date and Time
Multiple network-related functions require you to have the correct date and time. One effortless way to ensure this is by having the device set it automatically. Here’s how.
Open the Settings app and tap on General.
Tap on Date & Time.
Turn on Set Automatically. After enabling this, also make sure the displayed Time Zone is correct.
7. Double-check You Have No Outstanding Bill
I use multiple SIM cards. And it often happens that my secondary and tertiary phones are not able to make calls. Then I realize that I forgot to pay the bill. Thus, I would request you to use your carrier’s unique code or app and make sure there is no pending bill and you have enough credits to make the call.
8. Take Out the SIM Card From iPhone and Reinsert
Use the SIM ejector tool that came with your iPhone. If you don’t have that, feel free to use a similar pin. Now, on the right side of the iPhone, you will see the SIM tray. Insert the pin inside its hole to take out the card. Wipe it with an extra soft dry cloth. After that, please put it in the SIM tray and safely insert it back.
9. Check for Carrier Updates
Just like iOS updates, your carrier also issues updates. Usually, for these, you see a popup on the Home screen or in the Settings app. But, still, it is important to double-check. So, head over to our quick guide that tells you how to update carrier settings on your iPhone.
10. Update Your iPhone
For optimal performance, you should have the latest version of iOS on your iPhone. Apple makes it effortless to update your device. For this, open the Settings app, tap on General → Software Update. Download and Install if you see a pending update.
11. Reset iPhone Network Settings
Open the Settings app and tap on General. Then scroll down and tap on Reset.
Tap on Reset Network Settings, enter your iPhone passcode, if asked, and proceed.
Phone App Successfully Working Again on Your iPhone!
I hope the solutions above fixed your Phone app issue. Sometimes it also happens that you may connect a Bluetooth device or put your iPhone in DND mode and forget. This leads to no sound output from your iPhone earpiece, or you do not hear the phone ring during incoming calls. Thus make sure you have turned these off.
I have been an Apple user for over seven years now. At iGeeksBlog, I love creating how-tos and troubleshooting guides that help people do more with their iPhone, iPad, Mac, AirPods, and Apple Watch. In my free time, I like to watch stand up comedy videos, tech documentaries, news debates, and political speeches.