call came in, caller ID showed it to be "Pub Saf Inc"

let it roll over to answering machine, and as soon as the machine answered, they call got disconnected.

I have had them call me for about 6 months now.  Would like to know who it is, but I hate to get the phone when it's not a number I know.  I do the same thing and let the machine pick up and they hang up.
I hope something gets done about it also.

It's a pain to have them call 2 or 3 times a day for the past 6 months.