Not sure where you live but around here they getting rid of analog lines all together. My isp keeps trying to get me to switch to full fibre to the prem, which I keep refusing as I don’t want them drilling holes in my house till I’m ready to redecorate. The number of people in my village who has switched to full fibre then moaned that their house phone no longer work.. lol
My parents just moved to a new build with just fibre in the whole estate so it’s a case of either a fibre phone line (voip) which is crazy expensive or what I got them, a household cellphone.
I’ve been looking at vintage casio watches with telememo and databank.. some have phone diallers built into them, if I recall correctly; there was individual phone diallers that you could hold against the microphone part of the phone which would dial numbers.