My volume is up but i am not hearing my phone.
Please check the phone to see if it’s on Do Not Disturb. On the quick launch menu it’s a circle with a horizontal or diagonal line in the middle.
Another suggestion, press the volume button, then swipe down the menu. Check to see if Ringtone or Ring volume is turned up.
You can check this setting in Settings
Sound or Sound and notifications
Check the different volume controls.
Depending on the make and model of your phone I would suggest clearing the system cache. Since some phones do not have a system cache, would you please let us know the make and model of your phone?