Receive up to $504 promo credit ($180 w/Welcome Unlimited, $360 w/ 5G Start, or $504 w/5G Do More, 5G Play More, 5G Get More or One Unlimited for iPhone plan (Welcome Unlimited and One Unlimited for iPhone plans can't be mixed w/other Unlimited plans; all lines on the account req'd on respective plans)) when you add a new smartphone line with your own 4G/5G smartphone on an eligible postpaid plan between 2/10/23 and 4/5/23. Promo credit applied over 36 months; promo credits end if eligibility requirements are no longer met.
$699.99 (128 GB only) device payment purchase or full retail purchase w/ new smartphone line on One Unlimited for iPhone (all lines on account req'd on plan), 5G Start, 5G Do More, 5G Play More or 5G Get More plan req'd. Less $699.99 promo credit applied over 36 mos.; promo credit ends if eligibility req’s are no longer met; 0% APR.
On phone calls, I have audio if I use the Speaker feature, or if I plug in a headset. But I do not have audio if I use the standard earpiece (when I place the phone against my ear),
I had this challenge with my iPhone 6 a few months after I purchased it. I setup an appt with Apple and they actually swapped out my device.. although now they typically just change the front screen / panel on the device. You prob need to have a repair done. You can setup an appt with Apple via the Apple Store App and pay the fee to have it repaired. https://itunes.apple.com/us/app/apple-store/id375380948?mt=8
e.g. out of warranty repair: https://www.apple.com/support/iphone/repair/ - I think it would fall under the $129 for the out of warranty on the screen repair since the earpiece I believe it tied to the front screen / panel
If you won't live by an Apple Store you could always have a cell phone repair shop fix it.