Does anyone know of a landline phone that can bar only certain outgoing calls to mobile numbers, but not all? My father has Alzheimers and his wife divorced him as a result. He constantly calls her number (she never picks up or doesn't have the phone any longer), so all he is doing is wasting money each time he calls. He rang her 21 times in one day last week. (I check his bills online). It's usually about 6 times a day, so that was a bad day. He no longer understands the difference in cost between ringing landlines (free) and mobiles. I don't yet want to use the bt facility of limiting him to only 10 outgoing numbers yet as he would find it too frustrating.