Reddit reviews Wireless GSM Desktop Phone - Desktop Style Phone with SIM Card Slot by The Emperor of Gadgets
We found 1 Reddit comments about Wireless GSM Desktop Phone - Desktop Style Phone with SIM Card Slot by The Emperor of Gadgets. Here are the top ones, ranked by their Reddit score.
Someone is impersonating her. Identity theft and all that. But I'm sure you know that.
As for call fowarding, there could a cordless phone hidden inside the house. With a cordless someone can approach from the outside, forward the number, and walk out of range again.
If your MIL can learn how to use a cellphone I'd say disconnect the landline altogether. You can get "desktop" mobile phones that uses a SIM card and all that. No need to make her deal with a tiny screen.
https://www.amazon.com/Wireless-GSM-Desktop-Phone-Gadgets%C2%AE/dp/B00MWJS6HQ <<== example only, not an endorsement
Oh, and get a Wifi security cam or three, if the house is already setup on Wifi. At least two visible and one HIDDEN. One at front door, one at backdoor, and a hidden one aimed at the phone itself. You know, one of those disguised as a book or a AC plug or light fixture, or something. Those can be set to motion sensing only and upload to the cloud or a small PC hidden in a closet somewhere. Your aunt may have visitors she trusted and completely forgot about, but who may be cheating her behind her back.