Hey. Thanks for getting back. We've basically followed the instructions in this recent video
https://www.youtube.com/watch?v=1K34YwARw20
We can record the narrator and communicate back with them -- all good. The only thing we haven't been able to figure out is how to send them playback of what's already been recorded. Feels like the solution is hiding in plain sight. Any help would be greatly appreciated. Have a good day!