Call screener An "industry vet" stated, "At the very least you can catch 90 percent of them by getting their number and calling them back, generally they freak or give you a phony phone number." Other techniques described "include grilling the caller on little known facts about the situation or organization they claim to represent." Prank callers don't always get through: Although the names of most call screeners never make it on the air, there are a few notable screeners that are major characters on their shows. Many live call-in radio shows do not like alternative or adverse opinions to be aired,
Do Not Call Register to cease calling it, and the number remains on the register permanently. Certain organisations, however, are exempt from this, specifically charities, religious organisations, educational institutions, government bodies, registered political parties/candidates, or any organisation for which the individual has given consent (explicit or inferred) for their number to be called, which can be withdrawn at any time. Market research is not considered to be telemarketing and is also exempt, although these calls are also subject to the industry standard. It is an offence for a non-exempt organisation to call a number on the Do Not Call Register; organisations that do so