Telemarketing is used as an effective and legitimate marketing tool by well known companies. They operate within the constraints of a Govt. approved  framework,  without annoying customers who are called. Many of us would not have had problems with legitimate telemarketing.   However, consumers as a community need to be blamed for encouraging scam telemarketers, by giving them business, though most are unscrupulous and calls without respecting Do Not Call List. Do we really have to engage with people / companies that we have no prior knowledge of? Is it not stupid to enter into commercial tra...