Got a call from this number at 9 in the morning.  Caller ID showed "unavailable," but I answered anyway b/c I didn't have my glasses on and couldn't tell if the area code was 215 or 216 - we know people in the 215 area code.  When I answered, no one responded.  Sorta ticked me off.  After I got my glasses, and saw the area code, I dialed the number back.  All I got was a recording that advised the person I was trying to call was unavailable, and that I should leave a message after the tone.    I dialed the number 4 times, and got the same each time.  So each time, I hammered the keys on the number pad.  I don't know if this REALLY works or not, but the last solicitor/scammer/spammer I did this to never called our number again.