Question about phoneDTMF with ESP32 and POTS project from 2019

[Virgus]

Hello Adriano, this is not an issue related to this repo, but I've read this old comment of yours on Arduino forum and I'm really interested in what you did at that time. I just ordered one of the latest boards suggested in the link you provided (hoping the custom firmware will still work properly) and I wonder if you have shared somewhere that old project which uses this phoneDTMF library I suppose. Did you swap the 8081 mcu with one ESP32 on that board ? Or created a new custom PCB from fvollmer's schematics ? Cheers, Virgus