For the VS4000, is it possible to listen locally to all four Skype callers at the same exact time? I see the dropdown that allows me to choose either callers 1/2 -OR- 3/4 (on Left/Right respectively) but is there a way to listen to them ALL? I see you can Talkback to all/any, but not listen?

I'm considering using de-embedders and bringing them into a sub-switcher before handing off to the A1, but feel this should be a core feature of the VS4000.

Am I just missing something?
Thanks!