How to Fix the “Last Line No Longer Available” iPhone Error
Do you keep receiving a “Last Line No Longer Available” error while attempting to place a call on your iPhone? You’re not alone, as several iOS users have come across the same issue.
Below, we’ll briefly discuss what this error means, why it shows up on your iPhone, and teach you everything you can do to get rid of it. So, let’s get started, shall we?
What Does the “Last Line No Longer Available” Error on iPhone Mean?
An iPhone on a Dual SIM setup can display a “Last Line No Longer Available” error when it has trouble detecting the default or preferred line while attempting to make a phone call. It mainly appears onthe various iPhone 13 modelsbut can also be a problem on otherdual SIM-supported iPhone models, including the new iPhone 14.
The underlying reason is some random bug or glitch with the cellular radio, a corrupt call log, or an incorrectly configured network setting. you’re able to still use your other number, but that’s not always practical.
Usually, fixes like toggling Airplane Mode on and off, restarting your iPhone, or clearing your “Recents” history help resolve the issue. However, you may have to resort to performing a carrier settings update or a network reset if none of the more straightforward fixes help.
Let’s go through each possible way to fix the “Last Line No Longer Available” iPhone error.
1. Switch Phone Lines Manually on iPhone
Tapping theCalloption on the “Last Line No Longer Available” pop-up automatically puts the call through the other line on your iPhone. If that doesn’t work as well, try switching numbers manually.
If you do not want to use the alternative line on your iPhone, continue with the potential fixes below.
2. Toggle Airplane Mode On and Off on iPhone
Enabling and disablingAirplane Modeis a quick fix for most cellular connectivity issues on the iPhone. Just bring up the Control Center (swipe down from the top-right of the screen or double-click theHomebutton) and tap theAirplane Modeicon. After waiting 10 seconds, tap the icon once more.
3. Restart Your iPhone
Another quick way to fix the “Last Line No Longer” available error requires that you reboot your iPhone. Since iOS does not feature a “Restart” option, you must turn off the device and manually boot it back up.
To do that, open theSettingsapp and go toGeneral>Shut Down. Then, swipe thePowericon to the right, wait until the screen goes fully dark, and hold theSidebutton until you see the Apple logo.
4. Clear Your iPhone’s Call History
If the “Last Line No Longer Available” iPhone error occurs while dialing a contact or number on your “Recents” list, delete the call entries associated with the number and try again. To do that:
Delete the entire call log if the error occurs for every number on your iPhone’s “Recents” list. To do that:
5. Update the Carrier Settings on iPhone
Check if your iPhone has a pending carrier update. To do that, open theSettingsapp and tapGeneral>About. Then, scroll down to theCarriersection and wait for up to a minute. If you get a “Carrier Update Available” prompt, tapUpdateto install it.
you’re able to also view your current carrier setting and see if it’s the most up-to-date on your carrier’s website.
6. Avoid Using Your Preferred Line for Cellular Data
The “Last Line No Longer Available” error can also show up on your iPhone if you use your default or preferred line to access cellular data. You can change that by following these steps:
You may also want to try experimenting by setting theAllow Cellular Data Switchingoption to on or off.
7. Disable Automatic Network Selection on iPhone
Another reason for the “Last Line No Longer Available” iPhone error is a feature called Automatic Network Selection. It prompts your iPhone to pick the best network to establish a connection but causes issues on Dual-SIM iPhones.
To disable Automatic Network Selection, open theSettingsapp and tapCellular>Network Selection. Then, turn off the switch next toAutomatic Network Selectionand pick your carrier network.
8. Disable Wi-Fi Calling on iPhone
Wi-Fi Callingallows you to make and receive phone calls over Wi-Fi in areas with poor cellular signal strength, but it could also create conflicts and result in the “Last Line No Longer Available” error.
To fix that, open theSettingsapp and tapCellular>Wi-Fi Calling. Then, turn off the switch next toWi-Fi Calling on This iPhone.
9. Install the Latest Software Updates
Apple regularly pushes software updates to iPhones so as to address issues like this. So, a newer software version might contain a permanent fix for the “Last Line No Longer Available” error. To check, open theSettingsapp and go toGeneral>Software Update. Then, tapDownload & Installto install the latest available version of iOS for your iPhone.
10. Reset Network Settings on iPhone
If none of the fixes above work, tryresetting your iPhone’s network settings. To do that, open theSettingsapp, go toGeneral>Transfer & Reset Phone>Reset>Reset Network Settings.
A network settings reset wipes your iPhone’s cellular settings and preferences, but they should automatically update after the device reboots itself. Contact your carrier if they don’t.
Resetting the network settings on your iPhone deletes all the saved Wi-Fi hotspots and passwords. You must manually rejoin any networks afterward.
Say Goodbye to the “Last Line No Longer Available” Error
Turning Airplane Mode on and off, restarting your iPhone, or clearing your “Recents” list almost always fixes the “Last Line No Longer Available” error. If not, take the time to go through the other fixes above, and it should eventually go away.
However, if the problem persists, the only remaining option is to contact your carrier or Apple Support for help. But don’t worry; they can help you in more ways than we could.
If your iPhone is playing up, the easiest way to get help is to use the free Apple Support app.
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