I thought it was against telemarketing companies to call without identifying themselves.  Dead air is all I keep getting and I refuse to answer another call from these pests.....I get 4 or 5 calls from them a day.  I am going to report them to the CRTC for not practicing fare telephone soliciting practices.
Bloody hell, I hate it....STOP

So why do half the people say there was no anwser from the other side

I am trying to decide if you are sarcastic or not.... keep doing it this way?  they call and do not leave messages, and many report getting dead air ... this is not the way to get donations ... they are not doing their charity any favours by calling 5 times a day just to harrass people by making them run for a phone and then  no one talks to them

I got a cold call from the CF people in the summer looking for donations .. when I answered the phone, I had a polite person explain what they were doing etc., and I told them to send a truck over ... I emptied my basement and garage of items I had been hanging onto for years .... I would deal with them again simply because they had their name on the display;  talked to me when I answered;  were courteous, and have not called me since then, which I assume means that they realise that they should wait about a year to see if I accumulated more unwanted items.  They also provided their business card when they stopped by with their phone number and web site so I can contact them .... this is how you collect items for a charity ... well done CF :)

They keep calling for years ! Asked them many times to remove # from their list,they promise,but nothing happens.I don't believe they're a charity.Someone suggested,next time they call to tell you have lots of clothing to give away and to send a big truck !

They started calling my house since yesterday afternoon and no one would talk...They already called 3 times this morning, so i decided to google the #, and found this site.I think a total of 7-8 calls since yesterday afternoon.

They are a registered charity, perhaps, exempt by law from teh DNC List.  YOU can kindly ask them to remove your number from their list and, maybe, they might.