Got this call as unknown caller (from my area) so...... I let it ring twice lift the receiver and hung up. I immediately got a call follwing from toll free 855 424 4055, this number is supposedly for Autism awareness wanting to send mailer info for you to distribute in your neighborhood. Probably a sneaky way to get your address to do what they want with it.   I believe both calls were from the same place as they were back to back. All of these phone scammers have multiple numbers to call from.    My newest defense which seems to be helping to lessen the unwanted calls is to....... look at the caller ID, if it's nobody I know, I let it ring twice, pick up the receiver and just hang up.  I think it may be giving them the impression that calls are being blocked and/or it may be a non working number.