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How to politely deal with telemarketers
Prepare yourself before answering the phone call.
If you have caller id, you may know that a telemarketer is calling before you pick up. If that's the case, try to be as polite as possible right from the start.
If you know you can't, just don't answer. Although it might be tempting to simply ignore the call or to answer and hang up quickly, that is not how you should handle telemarketing calls.