iPhone 7 Plus made and received phone calls fine before upgrading to iOS 15.6

I had the SAME issue, here is EXACTLY what is going on: (answered, promise):

(only exception is that i updated to a different iOS since this was a year ago, on my iPhone 7+):

After speaking to apple and those "fixyouriphone" stores at the mall, i learned theres a hardware problem with the 7+

and that theyve seen hundreds people come in with the same problem, and they said they could fix it but it would eventually just die out and stop working

I know, its extremely annoying, but that is the answer + truth.

My girlfriend got me a 7 for xmas just for fun, since theyre cheap

Well theyre so cheap and so in stock everywhere because they have that hardware issue which makes you not be able to hear on both ends unless AirPod Pros (for me) or airpods are in

Yes it *****, sorry to be the bearer of bad news

PS- this problem started in the last few years because thats when people started noticing their 7's (and some 8's) completely "dying" in the calling and receiving calls sense

Sorry man

-Mike

First try a Forced restart Force restart iPhone – Apple Support (UK)

Then afyer backing up, try resetting all settings

If no better you should arrange a repair iPhone Repair - Official Apple Support

Or

 Contact - Official Apple Support

Anything other than Screen or Battery may be a replacement phone and the price is in the article under "Other damage"

See also:  Get your iPhone, iPad, or iPod touch ready for service - Apple Support

Yup, same with the voice to text on the keyboard too right? Trust me i get exactly what youre saying--

--also

Dont downgrade the iOS in iTunes or through one of those 3rd party things you download online/or a "iphone fixer"

Im "that guy" who literally did that and spent the $49.99 on an app that focused on it

Well it didnt fix it obviously but it did show exactly what Apple employee chat people and the "fixyouriphone" people at the mall were saying: the hardware problem

It starts 4-6 years after the phone is manufactured

Ive never commented a reply on this help apple forum thing before

Mike

[Edited by Moderator] 

(a) turn up the volume during a call

Ensure you have mo bluetooth device connected (earphone symbol)

(b) Settings, Phone, incoming calls, change to Full Screen

blissak ~ Does your iPhone 7 Plus still have its original battery?

And what's the Maximum Capacity % here?...

Settings > Battery > Battery Health

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*to add to my reply: your 'Voice Memos' doesnt work either, right? Nothing will, im sorry man :/

At least you know now

blissak1 wrote: "No, it has a replacement battery. Maximum capacity 88%."

Was it replaced by a qualified technician using a genuine iPhone battery?...

About genuine iPhone batteries

Repair Provider Verification - Official Apple Support

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"...It starts 4-6 years after the phone is manufactured..."

Speculation. If you have statistical evidence, present it, although having any handheld device last 7 years of daily use would be an achievement Samsung could only dream of.,