How to Fix “Last Line No Longer Available” Error

Does your iDevice frequently pop up “last line no longer available” error message each time you try to host a call? If so, you don’t have to worry as there are others that are faced with the same issue.

What does the error message mean, why is it popping up, plus how do you fix it are the questions this article is structured to answer. Without further ado, let’s get started.

Part 1. What Does “Last Line No Longer Available” Mean?

The last line no longer available error message isn’t as complicated issue as you may have thought. If you are familiar with iOS dual SIM-supported devices, you must have noticed a prompt requesting which SIM you wish to use for iMessage, FaceTime, and phone call. The device acts according to your selection.

Should in case your device can’t recognize the selected network, you will get the “Last Line No Longer Available” error message. And you will be forced to host a call using the other line you have on the device.

Part 2. Why Does “Last Line No Longer Available” Occurs?

Last Line No Longer Available error message occurs for several reasons. Some of them are listed below:

• System Update: Recent survey showed that folks experiencing “last line no longer available” error are mostly those who run their device on previous operating system. The error is common with iOS 15.0 and older versions.
• Improper SIM Installation: Did you recently take out the SIM card from your iDevice? If so, chances that you’ve wrongly placed the SIM during installation can cause “last line no longer available” error. This is fixable as you can remove the SIM and place it well.

Fixing this is absolutely easy when you have our guide at hand. The next section of this article will focus on possible ways to fix “last line no longer available” error message.

Part 3. 13 Ways to Fix “Last Line No Longer Available”

Wipe the “last line no longer available” error message popping up on your iDevice today using any of the 13 solutions provided below.

Fix 1. One-click to Fix it with Repair Tool

With an iOS system repair tool like PhoneRescue, you can fix your device and improve its functionality conveniently from the comfort of your home. The software fixes over 100 iOS-related issues ranging from iPhone/iPad broken screen, white lines, frozen screen, unresponsive keys and more.

Also, it works perfectly for the “last line no longer available” error message you encounter on your iDevice. The software fixes this error within the shortest possible time using the latest firmware package. It works without compromising your data, or the device performance.

Get rid of “last line no longer available” error message with PhoneRescue following the instructions below:

Step 1. Get PhoneRescue for iOS installed on your Mac/Windows PC. Choose Repair iOS System.

Step 2. You can choose Advanced Mode (no data loss) or Standard Mode. After repairing, your iPhone will be restart normally.

Step 3. Enter your iPhone to recovery mode.

Step 4. Get matching firmware for your iPhone. After downloading, PhoneRescue will start repairing immediately.

Step 5. The repairing process is completed.

Fix 2. Turn On/Off Airplane Mode

Activating and deactivating Airplane Mode is a popular troubleshooting technique often used to fix network error. And since network error is one of the primary causes of “last line no longer available” error message, turning Airplane on/off should fix it.

This solution is easy to implement. Follow the guide below to do that:

• From the right hand side of your iDevice, swipe down your screen to access the control center (if you use a device with no home button).

If your iDevice has a home button, kindly swipe up from the bottom of your screen to launch the control center.

• Next, tap on the Airplane Mode feature to activate it.
• Wait a few seconds or minutes, then tap on Airplane Mode again to disable it. Once done, the network error will fix itself. Now, try hosting a call again.

Fix 3. Force Restart Your iPhone

Force restarting your iDevice is another wonderful solution to fix the “last line no longer available” error on your phone. The solution refreshes your device by flushing out those cache and unwanted temporary files causing it to misbehave.

Apply the following instructions to force restart your iPhone:

• iPhone 8 and later generations: Press the Volume Up key, and release. Do the same for the Volume Down button. After that, hold down the Lock key until the Apple logo pops up on your display screen.
• iPhone 7/7 Plus: Simultaneously hold down Volume Down and Power buttons. Keep holding both buttons until the Apple logo appears.
• iPhone 6/6s and older generations: Press the Volume Down and Power key concurrently until you find the Apple logo on your phone screen.

 

Fix 4. Change to the Other Phone Line

Since your iDevice is dual SIM compatible, we advise that you change your default calling line to the second line. This way you can reach out to whoever you want to without the “last line no longer available” error message popping up.

Here’s how to switch your default calling line:

• Tap on the Phone tab on your iDevice.
• Select Recentsat the bottom left corner on the screen that appears.
• Next, locate the phone number you want to connect with and tap on the i button (also known as info) beside it.
• Switch your default number to the other line.
• Now try connecting with the phone number and select Primary Phone Number > Alternate SIM. You should be able to connect without errors.

Fix 5. Update Carrier Settings

Here is another effective troubleshooting solution to fix “last line no longer available” issues on your iDevice. Sometimes your carrier settings may be outdated and require updating.

When you update your carrier settings you can easily boost your network performance, thereby fixing the error message. Follow the procedure below to update your carrier settings:

• Head to the Settings page, and click on General > About. You should get an alert requesting you to update your mobile carrier settings.
• Tap on Update underneath the prompt to commence carrier update.
• Wait until the update is completed, then redial the number to get in touch with who you want to contact.

Fix 6. Remove and Reinsert Your SIM

Improper placement of SIM cards often result in “last line no longer available” issues on iOS devices. You can fix this by taking off the SIM from your device and reinserting it. Although traditional, this solution is one of the most effective solutions available for fixing cellular network issues on a mobile device.

To implement this solution, you have to turn off your iDevice first. Once done, follow the directions below:

• With the aid of a SIM Card ejector, kindly remove the SIM Card tray from your iDevice.
• Next, place the SIM Cards properly.
• Now reinsert the SIM Card, put on the device using the appropriate keys.

Fix 7. Clear Recent Call Logs

Dialling calls from recent call logs often show “last line no longer available” error message. The reason for this is unknown but experts belief clearing the recent call logs on your iDevice is a potent solution to fix it.

You can clear your recent call logs following the instructions provided down here:

• Open the Phone app on your iDevice and select Recent.
• Locate the Edit tab at the top right corner of your screen and tap on it.
• Click on the Clear icon at the upper left corner to clear your recent call logs.
• Validate your actions by selecting Clear All Recents.
• Next, try to make a call again. The correspondent line should connect easily, and quickly.

Fix 8. Turn Off Find Contacts

Should the problem persist after employing the solution above, consider turning off the Find Contacts feature on your iDevice. Turn off the Find Contact feature. But this feature may not be available on the latest version of iOS.

Fix 9. Turn Off WiFi Calling

WiFi Calling is an advanced feature that lets you engage in a phone conversation with your contact via WiFi instead of cellular data. If you’ve enabled this feature in the past, your device may display “last line no longer available” error message.

Should this be the case, we recommend you to turn off WiFi calling. Doing this is super easy. Follow the directions provided below:

• Head to the Mobile Data page on your iDevice by clicking Settings> Mobile Data.

Older iOS versions often show Cellular Data instead of Mobile Data. Both options are similar.

• Scroll down and select WiFi Calling.
• Next, turn off the feature if it’s active before.

Fix 10. Disable Automatic Network Selection

The network selection settings have a significant effect on your carrier’s functionality. You have both manual and automatic network selection settings. When you select the former, your device connects using any available radio signal, whether strong or not.

However, when you choose the latter, your device connects to the best radio signal which, in most cases, is hard to find. While your device is struggling to connect with the best radio signal, you may experience “last line no longer available” error when you host a call.

Adjusting these settings can help fix the error message. Here is the procedure to disable automatic network selection:

• Launch the Settings page and tap on Mobile Dataoption (could be Cellular Data on some iOS version)
• Next, click Network Selection, and toggle the slider beside the Automatic icon left to deactivate it.
• Now, try making calls again to check whether or not the solution is effective.

Fix 11. Reset Network Settings

Wrong network configuration settings also affect your carrier’s connection. But you can fix it by resetting your network settings. Follow these instructions to reset the network settings on your iDevice:

• Head to the Settings app, and hit General.
• Go down the page and select Reset.
• After that, a new screen with numerous options will appear. Select Reset Network Settings.

Fix 12. Reset All Settings

No doubt, you’ve changed the default settings on your device in the past. And when that happens, the device may malfunction causing the error message “last line no longer available” to pop up.

Resetting all settings is the perfect solution to fix this issue. Follow the stepwise instructions provided down below:

• Tap on the Setting tab on your iDevice screen.
• Select General, and hit the Reset
• Click Reset All Settings to fix your device.

Fix 13. Update Software

What OS is your iDevice running on? If you have your device operating on the latest OS version, there’s a possibility you may encounter “last line no longer available”.

An update in the OS can fix this issue within the snap of a finger. Here’s the guide to do that:

• Find the Settings icon, and click on it to open the menu page.
• Tap on General > Software Update.
• An update icon will automatically appear should you have a new OS. Click on Download and Install to complete the step.

Final Words

The red you go with the detailed instructions on how to fix “last line no longer available” error message on your iDevice. All solutions are cost-free, easy to implement, and highly effective. Our best solution is PhoneRescue for iOS. The software uses AI to fix “last line no longer available” error at a remarkably high speed without you stressing yourself.