Calls going to wrong phone
So i messed up my phone a bit back and traded my 13 up for a 14 pro but the first phone wasn’t paid off yet so my providers let me trade up while also paying for 2 bills. I transferred my main number to my new phone while the new number went to the old phone and now my calls only go through to my old phone when my main number is on my new one. People who don’t use imessage calls go through but it’s the opposite for imessage users. How do i fix this issue and send my calls to the correct phone number?
iPhone 14 Pro