Asking or begging telemarketers to stop calling does not work.
Attempting to contact them is impossible.
Filing a complaint with the FTC can takes years.
Getting angry or upset just makes it worse.
Complaining on message boards accomplishes nothing.
You have two options:
1. Ignore the calls and continue to be harassed.
or
2. Answer the call, pretend you're interested and WASTE THEIR TIME.
Wasting a telemarketer's time is the most effective thing you can do because it disrupts their scam.