There maybe times when you need advanced stats from your router. These include the sync rate, attenuation and noise margin.
On the Billion 7300, they're very easily to find within the web interface.
Firstly, login to your router via the web-browser. The default IP for the router is 192.168.1.254 unless changed in which case you'll need to use the IP address configured.
Once logged in, go to Configuration on the left hand menu followed by WAN and then, ADSL.