Any ideas？

[LACKERKNACKER]

I’m experiencing a strange problem and would welcome views and possible solutions

I got a new phone a number of months ago, IPhone 12, sim free. This replaced an iPhone 7
I have a 3 pay monthly sim which I’ve swapped over into the new phone.

I make a lot of calls and have not experienced any issues apart from one regular call.

Each day, my better half calls me on her way back from work - I’m normally at home, but if not I get the same issue.

At the same part of her drive home the call starts to go crazy - I’d best describe it as a pixelated/ garbled noise. It never happened on my previous phone and it never happens when she calls anyone else at the same spot.

I took the phone to a Genius Bar to be checked over, they sent it away and found no issues - whilst using the old phone, with same SIM card, no issues.

Ive put an eSim in then iPhone 12, and this line does not have the problem.

I’m going to ask 3 to send out a replacement Sim Card to see if this cures this issue , but I can’t understand what’s causing this problem, as it does not occur it’s any other calls

Any ideas?

 

[LACKERKNACKER]

Thanks for that, what I can’t fathom out is why when she calls my other line ( Esim) or I’m using my older handset the call connects ok - I would have thought it was a connection issue at her end too, but would this not be the same regardless of any changes at my end ?