Which update did your phone recieve @Jostro65
Sometimes when an update happens not all apps optimise for a few days or the developer of the app needs contacting to let them know of the issues.
Please have a quick look in your Playstore.
Sometimes turning the phone off and then from a set series of button presses go into the phones system files and clear the cache files helps. No info is lost this way.
Or as a very last resort back up and factory reset after removing any relevant Sd card.
The calling issue may not be attached to the update.
Please check any mic for debris or lint and ensure your in a good signal area.
A Samsung Experience Store or Samsung Service Centre can run a diagnostic test on the phone.
I wish you all the best with this situation.
Daily Driver > Samsung Galaxy s²⁴ Ultra 512Gb ~ Titanium Black.
The advice I offer is my own and does not represent Samsung’s position.
I'm here to help. " This is the way. "
