If you do not answer the phone, no message is left, answered the phone and they insisted they give me a price on a new roof, would not take no as an answer, I finally had to hang up.
The call at least once or twice a day to offer me a roof inspection. I tell them I'm not interested and ask them not to call any more, but they just hang up and call again later. I've tried asking nicely, but I think the next one will be hearing some very naughty words...