call audio

Hello all, I am fairly new to OBS. I run sports podcast where I have guests join, (1-3 guests per podcast). I am trying to add a new call-in feature. This is where my viewers can call into the stream (using google voice). I use vdo.ninja to bring my guests to my live stream. When my viewers...

so i want to have the sounds that I am hearing from my laptop (for example even if im wearing headphones and im on a call, i want it that the people watching my stream can hear the call as well / if im playing a game on my laptop and there are sounds in the game and i have my headphones on, i...