"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.

Hello Sammmy1004,

Apple Support Communities is a fantastic place for help with your iPhone 13 Pro Max. To ensure we're able to provide the best support can you clarify where you're seeing this message? For example, is it showing in a specific app? If so, what app is the message showing in?

We look forward to working with you!

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!

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.

Hello I have had the above issue happen after purchasing iPhone 12pro

the issues I am having is that the phone when calling outbound is unable or not allowing me to reach a persons voicemail rather than just getting a beep

has anyone else had this

Prior to getting new phone no issue could hear a persons voice on their voicemail & was able to leave a message not just hear a beep

how to fix?

How to fix phone when it says that? This is a BRAND NEW PHONE!

I never got this message before on the iPhone 11. I got this message after having the 13 Pro Max for three days.

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

I just got this message for the first time but I do not have an iPhone 13, I have an 11. I am wondering if the recent software update is causing this?

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.

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.

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.

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.