[Free-RTC Discuss] Free software speaker phone

[Kralj Karlo]

On Mon, Mar 11, 2019, at 15:29, Saúl Ibarra Corretgé wrote:
> I'd recommend to use a spaker / mic combo which would already do it in
> hardware. Something like this:
> https://www.amazon.com/Phoenix-Audio-DUET-MT202-PCO-Speakerphone/dp/B000BL28M6

This is precisely the part that I wanted free software for. Even if no free software exists, could someone explain how these work?