When you try to make calls from the phone number that is set as the default on your iPhone, you keep getting the message “last line no longer available.”
There is no reason to be concerned because you are not the only one dealing with this issue. Several iPhone users have also expressed their dissatisfaction with the iOS 15 message that states the iPhone last line is no longer available. Do you want to know what the root of this issue is and how to solve it? The answers to all of your questions are included in this post for your convenience. Continue reading to find out the answer!
What does it mean when it says “Last Line No Longer Available”?
Whenever the user of an iPhone with a dual-SIM configuration attempts to make a phone call, the device may diplay a message that reads “Last Line No Longer Available” if it is unable to correctly identify the user’s default or preferred line. Although it occurs most frequently on iPhone 13 models, it is possible for other iPhone models that support Dual SIM to experience this issue as well.
When you try to make a call from the “default” SIM using the recent call log (which can be found in the Phone app under the Recents menu option), the error appears to occur the vast majority of the time.
After the error has been detected, you will then be presented with a message that provides you with the opportunity to make a call using the “remaining” line. You have the option of tapping “Call” in the box that appears on the screen; however, it is important to keep in mind that this will cause a call to be placed from any number other than the one that is set as your default.
Because of this error, users are unable to call another person using the line of their choice. They have no other option but to use the previous line for that purpose as well. WikiGuide will provide you with some pointers on “how to fix last line no longer available” later on in this post. Fortunately, there are solutions to fix this issue, and WiKiGuide will share them with you.
Why does it say “Last Line No Longer Available” when I check my phone?
The error has affected iPhone models that support dual SIM cards, such as the iPhone XS, the iPhone XR, the iPhone XS Max, the iPhone 11, 11 Pro Max, the iPhone Pro, the iPhone 12, 12 Pro, 12 Pro Max, the iPhone 12 mini, and especially the iPhone 13 models (iPhone 13, 13 mini, 13 Pro, and 13 Pro Max).
The question is, why does the error “Last Line No Longer Available” occur? The reason for this could be a corrupt call log, a random glitch or bug with the cellular radio, a network setting that wasn’t set up correctly, or something else entirely.
You are free to continue to use your other number, but keep in mind that doing so is not always advisable.
How To Fix iPhone’s Last Line Not Working
1. Turn Airplane Mode on or off.
Your iPhone’s Airplane Mode can be quickly and efficiently enabled and disabled to resolve the majority of cellular connectivity issues. Therefore, try this clever hack before continuing with the fixes listed below.
- To access the Control Center on an iPhone without a home button, swipe down from the top-right corner of the screen.
- Wait about 10 seconds after tapping the icon for Airplane mode before using it.
- To exit Airplane mode and resume using your network connection, tap the icon for it a second time. You can now test to see if the “Last line is no longer available” issue has been resolved by dialing any contact on your iPhone using your preferred SIM card.
2. Start your iPhone again
By forcing a restart, you can reset your network connection, clear the cache, and delete any unnecessary temporary files from your iPhone. This is frequently sufficient to resolve many iOS issues. Therefore, you ought to try this ingenious solution as well.
Press and hold the Power button (on the right side) and the Volume up or Volume down button (on the left side) until the “slide to power off” slider appears to restart iPhone X or later.
To turn the device off, simply drag the white button to the right. Once the Apple logo appears on your screen, press and hold the Power button (on the right side) once more for about 30 seconds.
To learn how to turn off, restart, or force start iPhone 13 as well as other iPhone models, visit How To Restart iPhone.
3. Maintain Your Phone
Additionally, phone bugs could be to blame for errors like “Last line no longer available.” Checking to see if there are any critical system updates that need to be installed is therefore a good idea. For that:
- After selecting Settings, tap General.
- Tap Software Update, check to see if there are any updates pending, and then complete the update procedure.
- the carrier’s settings, updated
Do you have any pending carrier updates for your iPhone? On your phone, open the Settings app and select General > About to verify this. If prompted, scroll down and click “Update”.
5. Replace the SIM Card after removing it.
This old trick may seem uncomplicated, but it can assist in solving cellular problems. Therefore, turn off your phone and then use a SIM-ejector tool to remove the SIM tray. Before inserting the physical SIM card again, wait a short while.
To turn on the phone, press and hold the Power button on the right side. Try placing a call on the default line on your iPhone to see if the “Last Line No Longer Available” error is resolved.
6. Delete Recent Call History
Clearing your recent call log may help you resolve the issue if you encounter the “Last Line Not Available” message on your iPhone when attempting to call a contact from your “Recents” list (your recent iPhone call history).
- On your iPhone, launch the Phone app.
- Tap “Edit” in the top right corner of the screen after selecting the Recents tab at the bottom.
- At the top left of the screen, click the “Clear” button.
- To confirm that you want to remove everything, choose “Clear All.” Restart your phone after clearing the call history.
After turning your device back on, try calling from the default line. If the pop-up disappears, the issue has been resolved.
7. Consider Changing SIMs
To make calls, iOS users can switch between SIMs. Even if your phone has a default line for calls and messages, you can change it. If you still can’t call from your default line because it says “Last Line No Longer Available,” try switching SIMs on your device.
- Next to the person you want to call, tap the I button.
- Next, choose your default phone number, then an alternate number.
- When you dial a number manually, tap the primary phone number and select the alternate SIM.
8. Disable WiFi Calling
WiFi calling is a useful feature, especially for people who are often in places with poor cell phone coverage but good WiFi reception. But WiFi calling can sometimes cause problems, like the error message “last line no longer available.” This error can be fixed if you turn off WiFi calling. Here’s how to do it.