Uh, Im not sure, because Im still pretty new to 232 and havent done any two way stuff yet. Im not even sure what you mean by polling. The key pads do show volume and source. I think the volume though is just led indicators for volume levels. Some how they use different film inserts on the small display for sources. I assume its something like the Elan Ole. They didnt have an example to see since its not out yet. I thought it was odd though that this new keypad retail $100 less than the 2, 4, and 8 button keypads.