Scam, rings mobile at same time as home phone.

Got the silent treatment

Has rung 11 times in last 3 days. Rings once or twice and hangs up.
If answered, line disengages and then an "engaged" signal played.
A few minutes later you will then receive another scam call from a different number.

Caller: I dont know

Repeatedly calls our business and hangs up when we answer. 6 calls a day

No response after answering, called 5 times this week to a business.

Keeps calling but when I pick up, they hang up.

I wrote down the number and waited to see if it was legitimate - i.e. if they left a message - and when they didn't I knew it was a nuisance call

Persistent calls regarding my NBN despite telling them that I wasn't interested.

Rang but hang up

Caller: Overseas call centre

Scam

Left a message "Hello Dear. How are you?" I blocked the number.

Caller: Scam

Called saying from South Australia and wants 20 mins of your time to answer questions and knew my name

Caller: (08) 7477 7952

Keeps ringing no one talks