The consumer watchdog is calling for an official 'Do Not Call' register giving Kiwis getting nagging phone calls another way of blocking contact.
A survey carried out by Consumer New Zealand, involving almost 1200 people, found seven out of 10 had been getting unwanted phone calls from companies selling everything from pay TV to vacuum cleaners in the past year.
It also found 30 per cent had been getting such calls at least once a fortnight.
Consumer New Zealand chief executive Sue Chetwin says people are fed up with taking calls from sales representatives pushing products.
"Not surprisingly, most people who get these calls aren't happy about it. Four out of five said they disliked receiving these calls and wanted them to stop."