Since updating to IOS 17 the volume of phone calls coming through the top speaker is very low. All other sounds are as normal such as alarms and switching to load speaker. multiple resets and restarts have not fixed this issue. Iphone 11 Pro
iPhone 8
When you are in a call and the audio is set to speaker, use the volume buttons on the side of the phone to change the volume settings. When you say the top speaker, are you referring to just holding the phone up to your ear, or do you have the audio set to speaker. If you mean up to your ear, then you have the ability to raise and lower the ear speaker volume while only in a call. Try that.
Phone Call Speaker quiet after updating to IOS 17
