[Freeswitch-users] Audio interfacing to POTS port for WebRTC

Strange request, so forgive me, but I’m looking to connect a PC running FS Verto/WebRTC to a telephone balancing unit. So basically, stereo audio in and out from a PC, to plug into an FXO port on a mixing console. The line switching on the console is academic as it will be permanently connected, and any dialling controlled from WebRTC. Appreciate this is a more of an electronics question, but if anyone knows a way to achieve this, someone on here will! Or maybe there’s a better way that I haven’t thought of!? Thanks R