Great idea!  Another thing you can do, is if you get bothered by a toll-free number, call them and stay on for as long as possible.  They charged by the time.

I am receving calls from this number too.

347-502-2578

I plan on getting one of thoses call blocker from www.digitone.com
DIGITONE Call Blocker 10?

calling 2 or 3 times a day--hang up when answering machine picks up

they've called me more than 30 times in the past 3 days.  often calling every 15 seconds.  I have them set up to forward to their other number 347-502-2579, and vice versa.  they can talk to themselves.

been calling daily.  when i pick up they dont say anything, when I let the machine pick, they don't leave a message.    I don't want to call back because it might confirm my number as a legitimate number in their pools of calls.   Question is how to stop/block it.

When calling back only a recording saying "if you like to be removed from our list, press 1."  Have been getting calls every day with the area code 347 and then 502 with the last four digits changing each time time.