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I would check to see if Attention Aware is enabled and if so, disable the feature. Settings>Face ID & Passcode>Attention Aware. I can't think of any other reason that the ringtone would lower.
 
I would check to see if Attention Aware is enabled and if so, disable the feature. Settings>Face ID & Passcode>Attention Aware. I can't think of any other reason that the ringtone would lower.
Attention aware is off, so I'm not sure, and I turn off the ringtone change with the button, and even though I set the volume all the way up, it will not ring loudly.
 
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