DND

Hey again, y'all. My dad, who is elderly and has Alzheimer's, recently got an S24FE. He gets a shitload of spam calls on the daily, and apparently , the Google gadget that intercepts them for me, won't work on a Samsung phone. (I carry a Pixel.)

On my phone, I have the option to add people to a "favorites" List, and when my phone is on DND, only the favorite people will ring through if they call or text. Does DND work the same way on Samsung? If so, I got the bright idea to put his friends and family in the favorites section and then put the whole phone on DND indefinitely, so the spammers can't get through. Will this work?