This is what my "Action PAC" does.
Panasonic home phone
1) Pressed "off" to silence ringer.
2) scroll to last caller
3) press menu, select edit to full number.
4) press save , scroll to "Call Block"
5) Press Select, scroll to "Yes"
6) press SAVE
BLOCKED NUMBER!
Political call, robo, wanting to know what party you are registered with. Only 1 question then disconnect. Now I will get calls from every political party asking who I am going to vote for.