I am not sure if anyone else is also facing the same issue. Everytime i call from my Nokia 6.1 plus to my friends Nokia 7.1 plus or the other way round, either me or my friend on the other end start getting lots of disturbance and have to reconnect but that also does not solve the problem.
The disturbance starts just moments into the call and happens almost everytime (7 out of 10 times). can you confirm if there is any solution for the same. the phones have the latest OS version and even apps are always up to date.
We have resorted to whatsapp calls now but that is just a workaround for now.