Looking at 2820vn - excuse any incorrect terminology, its mostly witchcraft to me!

I have 2 internet connections - one is via ethernet link to existing network (A). Inernet connection is usually very fast but can't do any QoS on it.

2nd is ADSL (B) which is relatively slow but unused by anything else.

I want VoIP traffic to go via (B) and everything else to go via (A).

This way VoIP traffic will go via a slowish but steady route, whilst other traffic will go the fast/bumpy route - make sense?

Can I do this with the 2820vn? If so any tips/keywords appreciated. If not then any product suggestions?