When attempting to make a call on your iPhone, do you frequently get the error message “Last Line No Longer Available. Do you want to call using your remaining line”? You’re not alone; several iOS users have experienced the same problem, especially early users of iPhone 14 devices. However, the iOS issue is not limited to the newest device models, older versions also get this exact same error such as iPhone 11, 12, and 13.
What Does the “Last Line No Longer Available” Error Mean on iPhone & What Causes the Issue?
After installing the most recent iOS software update, some users have reported seeing the error message “Last Line No Longer Available” on their devices. This occurs because the device is unable to select a cellular line on which to place the phone call that you have instructed it to make. In most cases, the issue may be traced back to malfunction of the eSIM or Dual-SIM capability on the device.
The root cause could be a random flaw or defect in the cellular radio, a tainted call history, or an improperly configured network setting on your iOS device. Although it’s not always practical, you can still use your other number.
How to Troubleshoot & Fix Last Line No Longer Available iOS Cellular Issue on iPhones
In most cases, remedies like restarting your iPhone, turning Airplane Mode on and off, or deleting the history of your “Recents” can help address the problem. However, if none of the simpler options work, you might have to update your carrier’s settings or reset your network.
Let’s explore potential solutions to the “Last Line No Longer Available” iPhone glitch or bug.
Solution #1 – Manually Change to the Other Phone Line
You have the choice to call or cancel when you run into this problem on your iPhone. Pressing the Call option to switch to your other phone line should be your first countermeasure.
You will need to manually switch to the last line on your phone if this error persists even after you select the Call option. Here is how to do that:
- To switch to the secondary line when dialing a new number, tap the active line at the top of the screen.
- When dialing a number from the “Favorites” or “Recents” lists, hit the Info button and select the desired number.
Solution #2 – Clear Your iPhone’s Call History
The majority of the time, recent call logs are the cause of this error message. Contacts in your recent call logs are apparently where the problem first appeared. As a result, to address the issue, you must delete your iOS call logs.
- Launch the Phone app on your iPhone
- Choose the Recents tab
- Then click Edit.
- Click Clear.
- Select “Clear All Recents.”
- Make a phone call to see if the error is still there.
Solution #3 – Avoid Using your Preferred Line for Cellular Data
If you utilize your default or preferred line to get cellular data on your iPhone, the “Last line no longer available” warning can also appear. By doing the following, you can alter that:
- Select Cellular from the Settings app.
- Click on Cellular Data.
- To completely turn off cellular data, choose the other phone line or Off.
You might also wish to experiment with the Allow Cellular Data Switching option by turning it on or off.
The “Last Line No Longer Available” problem is nearly always resolved by switching Airplane Mode on and off, restarting your iPhone, or deleting your “Recents” list. If not, take the time to try the other solutions listed above; eventually, it should stop.
But if the issue continues, your only recourse is to ask for assistance from your mobile carrier or Apple customer support.