I am having trouble with the person on the phone call hearing the person on my mac on skype. The audio from my mac to the mixer is for some reason not getting to the iphone. Skype(macbook) Audio: USB Interface Mic: AUX out iPhone Audio: Input 7/8 Mic: FX out Everything else works. I can hear both the Macbook and Phone. The Macbook can hear both phone and me. But the phone can only hear me.