"Last line no longer available" on iPhone 13 Pro Max

Yeah, I tried lots of possible solutions. None worked. I wanted to avoid clearing my Recent Calls list, but from what I was reading in a number of places, that would be the real solution. I called Verizon. They claimed there was some setup problem with my SIM and they got it fixed, but that did not fix the issue. So what I did was just delete each entry in the Recent Calls list that was for the person I was trying to call. Voila! I could call the person without the error. (I'm still not sure what would happen if you let it call with the "remaining line.") Anyway, that proved to me that clearing the list is the solution and I'll either do that or use the "one at a time" approach. Just wanted to mention that so others would know this optional solution.

SOLVED:

After receiving the same error and trying multiple solutions I was unsuccessful in clearing the error. After reading another response that the error related to the esim and physical sim conflicting, I removed my SIM card waited 30 seconds and replaced it. Voilà. No more issue. This was the only solution that worked and I haven’t had the problem since.

Thank you for that screenshot and additional information Sammmy1004. 

That appears to be related to the Dual SIM feature available on your iPhone 13 Pro Max. Were you using Dual SIM on your prior device, or did you change your mobile number after getting your new iPhone? Does this message appear when you attempt to place a call from your recents list, your Contacts app, or both?

If the issue only occurs when attempting to place a call from Recents. Try clearing your recents list, and see what occurs. To clear your Recents tap Edit towards the top-right, followed by Clear towards the top-left. 

Let us know how that goes!

This happened to me after trying to call an oft-called number from my contacts app. It was in my recent calls, but didn't want to delete from there. Restarted the phone and dialed the full number from the keypad, and it worked fine going forward, both from the contacts app and the recent list, so I think it was the restart of the phone that solved it.

Allie, here’s another solution possibly:

Go to Settings.

Scroll down, you’ll find the Search Bar.

Enter “Reset Network Settings”.

Go there.

The next screen will say something about preparing for a new phone, ignore that but at the bottom you’ll find a button that says “Reset”.

Looks scary but press that guy.

A group of options will appear, press “Reset Network Settings”.

You’ll be prompted to enter your PIN.

Finally, the next prompt will warn you of deleting Network Settings.

Select the angry red button that says “Reset Network Settings” anyways, it’s what you want.

This will restart your phone.

Come back if this doesn’t take care of that window!

Good luck!

You can call your carrier and they will activate the physical SIM for you, if the card you have has been used before you will most likely need a new one, but you can go to your carriers store to get one or they can mail you one. You will need your IMEI and SIM number to make the change. :-)

I used the “remaining line” option and the call went through. The eSIM versus physical SIM sounds like the best description of the issue. Will have to see what happens the next time I try from the same recently called record to see if it happens again or is fixed.

I get this error message as well. I believe it’s a bug in the iOS since I’m on an iPhone 12 Pro and this only happened with the latest update to iOS. I also find that the best way to rid the message is to clear my Recent Calls log. Hopefully Apple gets a fix out on iOS soon.

Last Line No Longer available is a very common and frustrating issue.

It typically occurs when you get a new iPhone or update to a major iOS. I faced this issue after updating to iPhone.

I spent hours researching solutions and made a note of the same.

Follow the steps below to fix Last Line No Longer Available. 

1 Clear Recent Call log.

2. Disable WiFi calling.

3. Restart your iPhone. 

4. Turn off Network Selection. 

5. Update network settings. 

6. Turn off Network Selection. 

7. Remove and reinsert SIM. 

8. Switch on and switch off AirPlane mode. 

The issue was resolved after I cleared the recent call log.

Hope you were able to resolve the error with above steps.

Took the asvice of clearing out my call history & hasn’t happened again! Thank goodness & thank y’all!

You need to select the default line to use. I believe you can do that from settings or by clicking on an entry in the "Recent" and you should see an option under the phone number.

Thanks for this link! Resetting my recent list didn't work. Neither did restarting my phone. However, turning airplane mode on and off did the trick!

Yeah, never seen this problem until I got a brand new iPhone 13 Pro. Clearing the recents list is something I'd rather avoid, but in all my searching, that seems to be the most successful approach. Everything else I've see as a suggestion has not worked. Clearly this is a bug that Apple and/or the Sim manufacturer need to fix.

I just upgraded from an Xs to the 13 Pro and I believe this error is because my cell provider is now using the eSIM instead of the physical SIM that would go in the SIM tray as it was on my Xs. When dialing a contact, the contact number gets "associated" with one of the 2 SIMs, ie Personal number vs. Work number, and the phone remembers that for that contact. Since I didn't use an eSIM before, it looks for the physical SIM to make the call and realizes there isn't one and then asked if it is OK to call from your other SIM, which, if you had 2 phone numbers on the same phone, would be a different phone number.

As above, you will have to contact your cellular carrier to get this resolved.