its a customer service call not sales

90% sure this is an Optus customer satisfaction number.

I got 7 calls from this number hung up on me every time then a guy talked to me on the 8th time and tried selling me something just block the number

This number calls my mobile often. They never say anything. I just hear a click after a little while and the call ends.

I got the same as Christine. Several calls no one spoke. I blocked them but today decided to check if I was blocking someone I knew! Thanks for the posts. I will keep this number blocked.

Called twice on consecutive afternoons - did not speak and simply hung up after about a second or two.

Called me 3 times, never spoke but I heard them breathing heavily...

I believe it is an unsolicited call from an Optus sales rep.

Look up this website for other peoples experiences with this number.
http://www.411phonedirectory.com.au/(08) 6151 2040-phone-number