However, you should always keep in mind that even if a modem works well with a particular DSL line, you might not get the same result with the same modem.
Different modems behave differently even on the same line. Some can extract a better speed out of a bad line than others. If you have a good line then the ST516v6 is very good, if you have a poor line then the ST516v6 might not do as well. The 2wire modem should do better with a bad line than the ST516v6.
