Dialing back I get a message that the number is incomplete or not connected so it is probably a spam caller.

Organisation claiming that they are working to help the general public regarding the "Residential Support Program". The caller went on about how many government benefits are not being utilised by the general public after retirement. The caller had an Australian accent and could speak english perfectly which was a plus for them.
Don't know if it is a real or spam group. I am suppose to receive a second call from a supervisor in the next 24 to 48 hours. Will try to string them along to see what their end game is to report to all reverse lookup interested parties.

Called my home phone few times a day but I didn't answer as my phone can screen incoming calls. I rang back on the number but always engaged.

I called back number (02) 9789 6242 just kept on ringing no one answered the call and never got any voice mail.

I agree with Iggy.
Australian accent - Female
Rung my Death Star private number, when I answered she said "hello"
When I asked "is that you Princess Leia" she said "who?" ...
... so I hung up

I think they are a company that is offering investment programmes to people who earn enough money and have enough equity in their house. Take a look at this link because I think they're the same people. I'm also waiting a call back from a supervisor.
http://forums.whirlpool.net.au/archive/2024909

Am going to keep on calling till i get an answer!

Has to be spam. It's unsolicited. I didn't pick up. Suck eggs if you check this site.

Spammer

This number has called 4 times over lunchtime today so far .I didn't answer as i have caller id & didn't recognise the number .Not once did they leave a message definitely telemarketer.

I got a call today on my mobile and when I called back it says the number is not connected..

I had 2 missed calls from this number within an hour. Have had previous missed calls from the same number also.
I looked up the number on the Internet and found it on the True Local site belonging to Y & N Painting & Decorating at Campsie. No idea why this business would be calling apart from trying to drum up business.

This number has called a few times in the last week. When I pick up, the line is dead or the call terminates.