To expect to be able to buy a mobile incoming call only phone for mother with dementia?

[Mxflamingnoravera]

My mum has dementia she has recently moved into a new care home that don't seem to be set up for being able to call my mother in between visits.
She had a doro but used it to call me twenty plus times a day and I had to remove it from her because I was getting no sleep.
The new home doesn't seem to have a system set up to be able to call residents except by mobile phone owned by the resident. So I need a phone that cannot be used to make outgoing calls and is simple to use. A smart phone is no use for her she's beyond learning how to use it.
My aunt and I both need ti call her, my aunt only has a landline and is 83 herself and will not consider a smartphone or iPad for face time (and I'd have ti drive hundreds of miles to set it up for her which I just cannot do).
Is there an incoming only phone that would work for our needs? Or ami expecting something uninventable!

Not quite what you asked but this Door phone was perfect for a relative with dementia - Doro Phone

Buy a payg phone and add no credit, so she won't be able to call out but will still be able to receive them?

Do people just not bother reading threads properly anymore?

Did they ever?

You could try komp which is a photo sharing, video calling system with a screen where you can have a device to watch calls etc (only need to answer).

Oh never mind, I see you've solved it.

Have a look at ownfone. You get to select numbers that are preprogrammed into the phone so in theory, it would be possible to choose a single number e.g. the care home switchboard or ask for it to be programmed without any numbers. There is an option to connect it with a telecare provider but if the home is happy to take charge of the phone overnight, that wouldn't be needed. And if she kept dialling the home switchboard, that would be a good reminder to confiscate it overnight!