telemarketer - would not answer any questions about who they were and after I persisted in asking that sort of question they hung up

Caller: Telemarketer

Nice lady but selling stuff all the same. she asked for the business owner.

This worked straight up for me:
her: can i speak to the business owner?
me: this is my personal phone, i don't own a business
her: this isn't (business name)?
me: no, sorry u got the wrong number

end scene.

trying to sell advertising space on a screen they have installed in "The Courtyard Family Medical Centre" at Kenmore, QLD 4069

Asked for the owner. I said they were not available and mid sentence, they hung up on me. Not rude enough!

Caller: Media Company

Telemarketing - Advertising Company. Repeat Calls and never leaves a message. Very annoying!

Rang numerous times over 2 days and left a message each time, with no voice or noise at all. When I finally did answer, they just hung up.

I called back number (07) 3182 5104 reached IVR for a company called The Courier Mail.