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

Got 17 calls from this number - called it back and it's the Children's Leukemian Foundation.

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

Called this afternoon. Caller was rude and insistent after I mentioned I do not entertain unsolicited requests for donations, or even information from charitable organisation, over the phone (we have our own system of organisations we donate to). Kept insisting that her job was to "assess the amount of monetary donations" I was willing to make. Caller won't get off the phone and her aggressiveness dissipated any form of goodwill.

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!

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)