I received a call from 415-523-7414 yesterday, 12/28/16.  When I picked up, there was a pause and then a chirpy young female voice came on to apologize for the pause ("problem with my headset") and then lure me into some kind of travel deal.  This is a recorded voice, but the audio quality is so good it sounds live.  I had a call with the exact message a few weeks ago, though it may have been from a different phone number.  In both cases, I hung up before the voice fully launched into the deal, so I don't know what I once-in-a-lifetime opportunity I missed.

I got this call last night (12/28/16) but did not answer it because I did not recognize the number and all it said was San Francisco on the caller ID. There was no message -  a reasonable assumption is  telemarketer.   Based on the previous comment, looks like it was. Now blocked.  It appears that they are coming out in force all of a sudden – maybe they think everybody is home between Christmas and New Year's and available to answer phone calls.