LOST MY VOICEMAILS
I have an old iPhone 5 that I took the micro sim card out of and put the SIM card that has service from my iPhone 6. After, I noticed that my old voicemails were gone. How do I get them back? Some are very important as I lost my Grandmother last year and I have voicemails from her back in 2012.. I have an iCloud back up from 2 days before I inserted the new SIM card and an iTunes back up from a couple months back. I restored with the iCloud back up but it hasn't restored them. Do voicemails get backed up? How can I restore them?
Please help.
iPhone 5, iOS 8.4.1
iPhone 5, iOS 8.4.1