Mom can barely use a basic, landline-only phone, with service through communityphone.org. She calls at least every week or so that her phone / the service doesn't work. (It works. Trust me, it works fine.) She does not have voicemail (she can't understand how to use it). She gets a million scam/spam/telemarketer/robocall calls a day. We can - for a fee, of course - get a spam blocker on her account. The ONLY other vendor in Arizona that offers a landline-only, LTE phone service is Ooma, but I don't know that they'd be any better, though they're much less expensive. Anyone dealt with them?? If she absolutely cannot use a basic, bare-bones, old-fashioned phone, then it's past time for another living situation. Psych/neuro eval scheduled for Feb., but I don't know if we'll make it that long...
You may be catering to her to much, and mom is just giving you busy work to do.
What's going to happen if she has an emergency or someone is trying to break into her home? How will she be able to call for help?
You don't need to be waiting until February before changes are made in her living situation. I would start now looking into assisted living facilities for her that have memory care units attached for when she gets worse.
Your moms overall safety is far more important at this point than what kind of phone you should get her don't you think?
If she can't use a phone , she shouldn't be.
But the only thing I can think of is a Alexa, connected to a cell phone, and mom can say , call ...... And it will make the call for her.
I doubt OP’s mom would remember to use it I guess it wouldn’t hurt to try.