Strange Sound on Call

[TerriE25]

After I've been on a phone call for 20-30 minutes it starts to sound as if the person is quite far away from their phone.
No issues before this time but it suddenly happens.

S8+ UK

 

[B. Diddy]

That sounds similar to this guest's post: https://forums.androidcentral.com/a...ng-call-my-phone-goes-silent.html#post6070092.

Does this happen in Safe Mode as well? https://support.t-mobile.com/docs/DOC-34283. Or after a cache partition wipe? https://support.t-mobile.com/docs/DOC-34311