Hi Per
I m also on the yousee net through Telmore.
I do sometimes experience that I receive the sms several times, but not that often.
The issue with the incoming calls I do not have.
The biggest issue I have, is if the GPS is on, I will get sound issues and the best here will be to restart the 10iii. So if I have to use the GPS on my 10iii, I will always restart the phone here after.