My 90+ year old mother-in-law wears hearing aids, but can not hear a phone call, even with amplification in the headset. I have seen the speech to text phones on Amazon, but the reviews say they can be slow and there is a human operator listening in on the call typing the messages.

I was wondering if there are any FOSS solutions for converting speech from a phone call to text so that we can communicate with her on the phone. She does not have a cell phone and does not want to learn how to use one, so texting is not an option. She has internet and wifi in her apartment and a phone line. It would have to be super easy to use, as she is not tech-savvy. She is local, so I could set it all up for her.

Thanks!

Mark