Landline in Memory Care?

I bought my mother who lives in Memory Care an Alzheimer's clock which tells you, in big bold letters & numbers, the time of day and whether it's day or night......do you think such a clock would help your dad? Here's a link to what they looks like and do, so check it out:

https://www.amazon.com/s?k=alzheimers+clock&crid=3QMQXGEWMUAPO&sprefix=alzheimers+clock%2Caps%2C535&ref=nb_sb_ss_i_1_16

If your dad is cognizant enough still, he will realize it's 1 am in the morning when he's trying to make a phone call and it will wake the person up. If he's past that point, however, the clock won't help. My mother is 93 with moderate dementia; up and down, but still somewhat cognizant on most days. While she insists the clock has been a HUGE help to her, she still asks me what day it is ALL the time.
So who knows, right?

I don't have a solution for you as far as blocking the late night calls, unfortunately. I will say that as much aggravation as my mother's phone causes me, and it causes A LOT (to say the least), I am not willing to remove it from her room until and unless she starts calling 911 like her sister did. The phone is her last remnant of normalcy and her only means of contacting her friends and nieces out of state, along with me and her grandchildren.

Good luck!

Would a phone that requires power and a smart plug or other timer device work for her? I have an older cordless phone base that doesn't work without electricity. Set the timer to turn off power to the bedroom phone during specified hours.

I would suggest an additional phone with the ringer turned off in case she needs to call out when the other phone is disabled

On a related note, here is a thread on safelisting incoming calls for elders:

https://www.bogleheads.org/forum/viewtopic.php?f=11&t=317663&newpost=5314565.

Turning the ringer off at night isn’t an easy fix since the OP doesn’t live with the 93 year old and can’t turn the ringer on and off for her.

Easiest fix for this is , As JoAnn29 mentioned, turn her ringer off at bedtime, then turn her ringer on in the morning when she is awake and ready to take any and all calls. I would worry about his calls to 911 or emergency services if he feels thwarted and is not getting the attention he wants. These calls are expensive and will be passed down to the resident. They start at around $300 for the first false alarm call, and go up in price from there. Over ten years ago when someone burned popcorn in our microwave at a hospital, our facility was charged $500 for the firemen who showed up. Not one of the eight of us present ever fessed up to burning the popcorn (it wasn't me!!). I surely enjoyed the eye candy of having the strapping firemen come to our rescue, but I wouldn't pay $500 for the show.

Can't you wipe your aunt's number from his phone? And take it out of his address book? Then she can phone him, instead.

If he knows her number by heart, then yes she'll just have to turn her ringer down at night.

All I can say is turn her ringer down at night or unplug the phone.

This is why I feel phones are not needed in a MC situation. The resident has a tendency of abusing it. Hopefully you have it set that only local calls can be made.