Problem with Calls

[Caitlin Rae]

I have the Note20 Ultra 5G phone and only have had it like 8 months, and for some reason, when I'm on a call, the other person who I am calling would hear screeching coming from my end, and usually my phone would say it's on 5G , or it would end a call 30 minutes into the call. It also tends to not have any sound come out from the other end, so I have to hang up and call again. I find this very annoying as it may or may not be an important call, does anyone else experience these things or is it just my phone? 

[AnnieB684]

So you can turn of 5g as its not available every where yet. Settings - connections - mobile networks. You will then see 5g. Click then you can change to 4g