Microphone/ Speaker not working when making cellular calls, Help?

[jakestan]

Hi, I just got a brand new Galaxy S7 edge.

It works perfect apart from making Telephone calls:
- I cant hear a dial tone
- When the person answers, they cant hear me, i cant hear them
- when I answer, I cant hear/ they cant hear
- loud speaker doesnt work

However,

All the speakers and mics work on a whatsapp call, and i can play videos etc. so it sounds like a software issue.

I have tried rebooting, factory reset etc

any ideas would be much appreciated?!

 

[missy8787]

What carrier do u have? I had the same issue with my old iphone when I was on Verizon

 

[IAmSixNine]

try pluggin in wired pair of headphones and see if that works. Then unplug and see if that fixes the issue.