Ihave been getting calls from these people for years, once I got ahold of them and I think they are a window company I asked to be removed from their list, and they leave it on. Cant get rid of them, so when they call I answer and hand up on them , or i just watch the phone ring.
get a call every day they wont say who they are when questioned. I now dont even let it go to voicemail I answer and put the phone on mute to waste their time.