blow a whistle into the speaker

Market research centre

this is from market research company. they act on behalf of their client. racv for example.
basically time wasters

Relentless, they just keep calling

A market research company that call but don't speak, they are becoming very annoying.

Organised Crime Syndicate probing your Home & Business hours that you're in attendance at the premises. Recurring calls over months until they determine your routine and then you have a nice 'break-in' or ram raid and everything you own is stolen.

Also on do not call register,phones home phone and mobile. Usually late evening, survey about internet (say no thanks as politely as possible).
Just blocked number on mobile, have to pay to block numbers on land line :(

MARKETMETRICS to do research. Don't answer

They don't give up ringing.

I got a call from a man called Michael from this same company, claimed he was doing research and asked if I had a younger daughter that he could talk to. I said, Absolutely not and hung up! Was quite odd!

I just had my 8th call from them, that's today only! They've been calling constantly for the last 4 days and I am constantly rejecting them. When will they leave me alone!?! I always check this site when one of these numbers pops up. Thanks to everyone on here for your comments :-)

Keeps ringing my home number. Never leaves a message. Pain in #%#%

Rang offering $70 cash for market research in Ultimo-said i wasn't interested, rang back 4 times in the next half hour, i rang (03) 8781 5750 and went off at them and they said they would remove me from the system... We'll see!

Martketmertics calling to "do research". Info they had was ten years out of date.
Yet another number to add to my pain in the arse file.

this is a nightly message, latest 16 Jan despite on not to call register.

Repeated calls over a week.. Sometimes multiple calls within 5 minutes. Just leave us alone..

Several calls when home or out. Want to ask questions under guise of survey. Hang up when asked to state who what where why....

Rings twice every morning without fail. How do you stop these people?

Unknown caller. No message left. Called my mobile, and then my home phone ( which is a silent number! )

Had 6 calls from this number today about an RACV survey. Rejected the last 5 calls and have now blocked them on my iPhone. Handy feature!