I have run across several call in apps that use the Opus Codec and thought that it would be a great add on to PlayIt. I'm thinking the way this would work is a caller or remote DJ initiates the call and a button changes color to indicate an incoming call. (might have to have a remote app or in the case of of some, use a web page). Pressing the button connects to the caller (or Remote DJ) for the remote hit or call. The Opus codec is very high quality sound and sounds like the person is sitting there in the studio. But this would take PlayIt to a new level. From what I can tell it wouldn't take much to implement. You would have to set up a MIX-MINUS so I'm not sure how that would work. Here are some of the apps that use the Opus Codec. Standalone - Feenphone Web page - Source Connect Now and ipDTL Some Open Source code here - https://www.twilio.com/docs/voice