How to Fix “Last Line no Longer Available” on iPhone?

Some iPhone users have been getting the “Last Line No Longer Available” error message while trying to call a contact. As it turns out, the error message has been known to occur after a recent update after which the device is not able to choose a line in order to make the phone call that you have it do. Usually, the problem can be due to the eSIM being activated after a certain update but that’s not always it. In this article, we are going to show you how to resolve the error message in question so just follow through.

Last Line No Longer Available Error Message

As it turns out, when the eSIM is activated on your phone and you are also using a physical SIM, the device may get confused on which line to choose when trying to make a call which can result in the error message. In addition to that, the problem can also arise in some cases when your network selection or Wi-Fi calling is enabled. Before we jump into the different methods that you can use to fix the issue, let us go over the various causes of the issue so that you establish a better understanding of the problem. 

  • Wi-Fi Calling — One of the reasons that the error message in question may occur is when you have Wi-Fi calling enabled. In such a scenario, to resolve the issue, you will have to disable it from your phone’s settings.
  • Network Selection — In some cases, the network selection setting on your phone can also give rise to the error message mentioned above. Network selection allows you to choose a network manually or automatically. As it turns out, to resolve the issue, you will have to disable the automatic network selection.
  • Recent Call Logs — As it turns out, the main reason for the error message in question is your recent call logs. The issue has reportedly been occurring with contacts that were present in your recent call logs prior to an update. As such, you will have to clear out the call logs to circumvent the issue.

Now that we have gone through the possible list of causes, let us get started with the various methods that can be used to get rid of the problem. So, without further ado, let us jump into it right away. 

Clear Recent Call Logs

The first thing that you should do when you encounter the problem in question is to clear out your recent call logs. As we have mentioned, in some cases, the problem may originate due to recent call logs that may be present prior to an update. In addition to that, there also have been reports of the problem only occurring on the contacts that are present in the recent call logs. As such, to resolve the issue, you will have to clear out the recent call logs on your device. This has been reported by multiple users, who were facing the issue, as a fix. 

To do this, follow the instructions that are provided down below:

  1. To start off, open up the Phone app on your iPhone.
  2. After the Phone app is open, tap the Recent option provided at the bottom.
    Switching to Recents Tab
  3. Then, on the Recent screen, tap the Edit option at the top-right corner.
    Editing Recent Calls Log
  4. Once you have done that, tap the Clear option at the top-left corner.
    Clearing Recent Call Logs
  5. On the dialog box that appears, tap the Clear All Recents option.
    Clearing All Recent Call Logs
  6. With that done, go ahead and try making a phone call again to see if the problem still occurs. 

Turn off WiFi Calling

As it turns out, WiFi Calling is a feature in iPhone devices that allows you to call your contacts over a WiFi network instead of using your cellular data. While this can be really beneficial when you are connected to a working network, there are cases where this can cause an issue such as this one or run into a problem itself such as WiFi Calling not working. As such, in order to get rid of the error message in question, you will have to try turning off WiFi calling on your phone to see if that resolve the issue. Follow the instructions down below to do this:

  1. First of all, open up the Settings app on your phone.
  2. On the Settings app, tap the Mobile Data option provided. On older versions, this may be called Cellular.
    Navigating to Mobile Data
  3. In the Mobile Data settings, tap the Wi-Fi Calling option provided.
    Mobile Data Settings
  4. There, make sure it is turned off.
  5. Once you have done that, try making a phone call to see if the error message is still there.

Disable Network Selection

Another reason that the problem in question may occur is due to network selection. In case you don’t know, network selection is essentially what decides how your device chooses which cellular network to connect to. The networks that are available to your phone can depend on the SIM card that you are using along with other things such as the modem. As per some user reports, the problem in question went away after automatic network selection was turned off. To do this, follow the instructions that are provided down below:

  1. To start off, open up the Settings app on your iPhone.
  2. On the Settings app, make your way to Mobile Data which can also be called Cellular on some versions of iOS.
    Navigating to Mobile Data
  3. Once you are there, tap on the Network Selection option.
    Mobile Data Settings
  4. There, make sure automatic network selection is disabled by tapping on the slider provided next to Automatic.
    Disabling Network Selection
  5. With that done, go ahead and try making a call again to see if the problem still occurs. 

Reset Network Settings

Finally, if none of the above methods has fixed the problem for you, then it is very likely that something else in your network settings is causing the issue. It is not unlikely for an update to mess with your network settings which can lead to several different issues. As such, in order to resolve the problem in question, you can reset network settings on your phone. To do this, follow the below instructions:

  1. First of all, open up the Settings app on your device.
  2. Then, navigate to General on the Settings app.
    Navigating to General
  3. At the bottom, tap on the Reset option provided.
    Navigating to Reset
  4. Once you are on the Reset screen, tap on the Reset Network Settings option provided.
    Resetting Network Settings
  5. With that done, go ahead and try making a call. Check if the error message still comes up.
Zubyan Gul
Zubyan is a Professional PC Gamer and a Systems Analyst. He has written numerous batch scripts for task automation to make his and others life easier.

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How to Fix “Last Line no Longer Available” on iPhone?

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