This is the line after running for approx. 12 h. I had to abort because the line kept degrading to an all time low and the DTAG technician will reset it today. I am now running my FB 7412 with stock firmware and will let go-dsl run on that aswell for comparison.
Now here are the results of the FB 7520 with OpenWrt. The image quality is worse because I used the -web option and thought printing as pdf would give me hires vectors which it did not. The red bar around 4 h is the time the line reset that is caused during the mandatory disconnect.
