They have called me every day this week between 3:50 and 4:05 p.m.   Same thing, when we pick up there's dead air.    I call back and get a recording that it's going to voice mail then the voice mail is set up to say it's full.I, too will find their company information and report them.  I am also on the Do Not Call list, it has stopped about 95% of the scammers but these guys somehow get through.What do they possibly get out of calling and saying nothing?  They certainly don't drum up business???

Beware they are big time scammers

These arseholes call me as well in their fake **** voices...No Call List is crap..Hope they call again because I have a plan....

Keep track of all the numbers you are getting called from - make a list and then contact the Police and the Governments' DNCR - and report them.  It may be it is the same people calling - but using different numbers.  They are not unlike the computer hackers - but if you don't know who is calling you from the number if you have call display - don't answer it.  Make note as above.

I am in the same boat as you....I am quite ticked that they are calling...looking into them and I am going to report them

They have called so many times, Air Duct Cleaning Service...each time I tell them I am on the do not call list and they hang up.  UGH!!!