We've been getting these calls several times a week. They hang up if no answer.  But today my husband answered and it was a recording selling medical alert systems for seniors. I would get rid of our land line in a second to avoid such obnoxious calls, but our mobiles have terrible reception at home. I'm now looking into Verizon wireless booster to amp up our signal.  It will cost a bunch. Of money, but it maybe worth it if these terrible telemarketers don't get hold of our cell numbers. I have friends who are giving up their land ones because of this.