How to Fix “Last Line No Longer Available” Error on iPhone

Dual SIM iPhones are great until the “Last Line No Longer Available” error message appears on the screen while you’re making a call.

This article explains what might cause your iPhone to display this error, and how to fix it so you can make calls without any problem.

Why Does My iPhone Say “Last Line No Longer Available”

This error, which is more common on iOS 15 and newer versions, occurs primarily due to the malfunction of the iOS when using e-SIM on your device.

Moreover, most users encounter the error when they want to call back or redial a contact from their recent calls list.

Although you can still call your contact using the other SIM card, it is irritating to encounter the Last Line No Longer Available” for several reasons.

First, you would like to use the default SIM card. Second, you might not want to contact the caller using another line.

For example, you wouldn’t like your clients to have your private number, which you use to call your family and friends.

How to Fix “Last Line No Longer Available” Error on iPhone

Whatever the case might be, we’ll show you how to get rid of the confusing “Last Line No Longer Available” error message on your iPhone. Go in order through the troubleshooting tips below until you fix the problem.

  1. Restart Your iPhone
  2. Activate Airplane Mode
  3. Clear Recent Calls
  4. Turn Off Contacts Suggestion
  5. Reset Network Settings
  6. Update iOS to the Latest Version

1. Restart Your iPhone

Let’s start with the simplest solution. Many errors are automatically fixed when the iOS 15 device reboots, including the Last Line No Longer Available” error.

Hence, testing complicated methods before restarting your iPhone is not a good idea. This step-by-step guide will show you how to restart your iPhone, regardless of the model.

2. Activate Airplane Mode

The second method which preserves all the information on your phone is turning on the Airplane mode and switching it off again.

Additionally, this action will basically reset your SIM card configuration and solve possible maladjustments between your device and the cellular network.

iPhone Airplane Mode
iPhone Airplane Mode. Screenshot: Farhad Pashaei/Gotechtor

Note: Your SIM card might provide cellular data, and you can receive calls. Still, some minor errors, such as the one at hand, might recur.

3. Clear Recent Calls

Although you might frown upon deleting your recent calls logs at first, it is an easy way to fix the error.

Furthermore, the problem will most likely persist, and you’ll just have to put up with the error every time you want to call someone from the recent calls list. Follow these steps to clear the recent calls:

1. Open the Phone app from your home screen.

Phone app on iPhone
Phone app on iPhone. Screenshot: Farhad Pashaei/Gotechtor

2. Go to Recents.

Recents in Phone app
Recents calls in the Phone app. Screenshot: Farhad Pashaei/Gotechtor

3. Tap Edit at the top right corner of your screen.

Tap Edit in Recents
Tap Edit in Recents. Screenshot: Farhad Pashaei/Gotechtor

4. Select Clear at the upper left corner of the screen.

Select Clear in Recents
Select Clear in Recents. Screenshot: Farhad Pashaei/Gotechtor

5. At the bottom of the screen, tap Clear All Recents to confirm your choice.

Tap Clear All Recents to fix last Line No Longer Available Error
Tap Clear All Recents. Screenshot: Farhad Pashaei/Gotechtor

4. Turn Off Contacts Suggestion From Settings

Your iPhone can extract data and contact information from other applications. However, sometimes the iOS fails to load the contacts properly. So, in case the previous fixes haven’t solved the issue, try the following steps.

1. Launch the Settings app on your iPhone.

iPhone Settings App
iPhone Settings App. Screenshot: Farhad Pashaei/Gotechtor

2. Navigate to Contacts.

Contacts in iPhone Settings
Contacts in Settings. Screenshot: Farhad Pashaei/Gotechtor

3. Tap Siri & Search.

Siri & Search in Contacts menu on an iPhone
Siri & Search in Contacts menu. Screenshot: Farhad Pashaei/Gotechtor

4. Toggle off Show Contacts Suggestions.

Toggle Off Show Contact Suggestions to fix last Line No Longer Available Error
Disable Show Contact Suggestions. Screenshot: Farhad Pashaei/Gotechtor

5. Reset Network Settings

Switching airplane mode on and off should reset your network settings to your last preference.

However, using this method will reset the network settings back to their initial status, and operator configurations will apply.

Follow these steps to reset network settings:

1. Open Settings app.

iPhone Settings App
iPhone Settings App. Screenshot: Farhad Pashaei/Gotechtor

2. Select General.

General Menu in Settings
General Menu in Settings. Screenshot: Farhad Pashaei/Gotechtor

3. Scroll down to Transfer or Reset iPhone.

Transfer or Reset iPhone
Transfer or Reset iPhone. Screenshot: Farhad Pashaei/Gotechtor

4- Select Reset at the bottom of the screen.

Tap Reset in Transfer or Reset iPhone menu
Tap Reset in Transfer or Reset iPhone menu. Screenshot: Farhad Pashaei/Gotechtor

5. Tap Reset Network Settings.

Tap Reset Network Settings to fix last Line No Longer Available Error
Tap Reset Network Settings. Screenshot: Farhad Pashaei/Gotechtor

6. Confirm your choice by tapping on the Reset Network Settings prompt.

6. Update Your iPhone Firmware to the Latest Version

At the time of publishing this article, the problem persists with the latest firmware. However, Apple might have fixed the error in later iOS versions.

Therefore, you can try updating your device to solve the “Last Line No Longer Available” error.

1. Go to the Settings app.

iPhone Settings App
iPhone Settings App. Screenshot: Farhad Pashaei/Gotechtor

2. Locate the General and tap on it.

General Menu in Settings
General Menu in Settings. Screenshot: Farhad Pashaei/Gotechtor

3. In the following panel, select Software Update.

iPhone Software Update
iPhone Software Update. Screenshot: Farhad Pashaei/Gotechtor

4. You can view the latest iOS on this page. Click Download and install to update your iOS firmware.

Download and Install Updates to fix last line no longer available error
Download and Install Updates. Screenshot: Farhad Pashaei/Gotechtor

5. Tap Restart if the Restart Required prompt appears on your screen.

Wrapping It Up

Every flower has its thorns, and iPhone is no exception. While the phone has shown few subtle bugs since the introduction of iOS 15, perhaps the “Last Line No Longer Available” is one of the most annoying errors you could ever see on your top-notch Apple device.

We hope your phone is working properly now that you have tried the above methods. However, if the error continues to appear, contact Apple Support or your network operator for help.

As a technophile, Farhad has spent the last decade getting hands-on experience with a variety of electronic devices, including smartphones, laptops, accessories, wearables, printers, and so on. When he isn't writing, you can bet he's devouring information on products making their market foray, demonstrating his unquenchable thirst for technology.

3 thoughts on “How to Fix “Last Line No Longer Available” Error on iPhone”

  1. Thanks for the really detailed, clear explanation of how to fix the “last-line-no-longer-available” issue. It’s maddening to try fixing your own electronics issues when so many “how-to” articles assume everyone understands techno jargon, or provide skimpy, basically useless explanations.

    Reply

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