obviously this is a robocall from telemarketers or scammers, which in my mind are both the same.  If I want a service, I will seek it out.  I will never buy ANYTHING from someone who cold calls me to buy something.  I get at least 6 of these type of calls everyday and it does get tiring.  I do not answer a call unless I know who it is from.  These scammers use different numbers that they have spoofed to try and get you to answer.  I use no mo robo and it can "see" the real number that is calling and if it is one that I have blocked before, it hangs up the call.  You would think they would go thru their lists once in a while and remove the numbers that they never get anyone to answer.  Guess that would be too much trouble for them tho.