FaceTime volume randomly drop on iPhone 15 Plus
My girlfriend has an iPhone 15 Plus. Her volume for FaceTime will randomly become super quiet. It doesn't happen at any certain battery percentage or any specific amount of time into the FaceTime call. All settings in FaceTime / Sounds and Haptics are have not changed or fixed this problem. Please help with suggestions or answers if you have them. Thank you!
[Re-Titled by Moderator]