I have been getting calls from this number. How do we block it??

been getting calls from telemarketers, this guy being the main offender.

Received a call from this number on January 4, 2010 at 10:27 a.m. (CST).  The caller was extremely rude and would not get off the phone even though I explained to him that this was my business number and that I was busy.  I also explained to him that I donated to a variety of charitable causes and that I did not wish to contribute to his organization at this time.  He brushed me off by asking why I wasn't prepared to assist in leukemia research.  Without question this was the rudest solicitation for funds that I have received in a very long time.  Also, I'm in Saskatchewan and I don't understand why the solicitation is coming from Calgary, Alberta!

Got called by this number over 20 times today.  It's still calling me after 10 minutes!!! Picked up and no answer. no message left. Who is this number????? $@#&!@!

Received a call from them here in Saskatchewan this morning. Still scamming, I see. This time though it started as a recording. "Due to the..." (click - I hung up)

I received a call today, and the rude insistant man on the line said he was raising funds for Lukemia research.  After listening to his speal, and telling him I don't give information on the phone, but said if he mailed it to me I'd look, he tried to tell me I he wasn't getting through to me.

Anyway, with his attitude, and the google history of this number, I believe that it is a scam number being used.  I would advise not to give money to this phone number.