They call 12 times a day, wish they would stop but these are robo calls that don't usually have an operator answer.
I just got a call which I will add to my block list. I will now get no ring but will get a list of blocked calls on my phone.
I have the Panasonic cordless telephone Model kx-tg6842b (2 handsets)
You can block 250 numbers plus kill the one ring that existed on earlier models that only allowed 30 blocked numbers.
The one handset model sells for $70 at Amazon.
My phone rang with caller ID MEMBER UPDATE. I picked up in 3 or 4 rings and said hello. dead line and then it went to fast busy at 40 seconds into the connection.